Stelrad Radiator Specification · 2020. 2. 4. · technical guide Stelrad Radiator Specification StelradTecSpec_LEE.indd 1 08/09/2014 14:01. Supporting your system design through

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technical guide

Stelrad Radiator Specification

StelradTecSpec_LEE.indd 1 08/09/2014 14:01

www.stelrad.com

Supporting your system design through

innovation and technical excellence

Offering the knowledge, expertise and technical know-how that our specification partners need is essential in delivering an exceptional package of support.

Combining this with innovative products, individual solutions and superior logistics means that we provide our specification partners with a unique proposition; one that delivers outstanding products alongside technical expertise and solutions designed just for your project.

Our aim is to help you to deliver superior environmental solutions that optimise building performance. We do this by providing you with a package of tools, support, products, manufacturing and innovation that only Stelrad can deliver.

Line Horizontal

Line Perimeter

Line Vertical

Flat Horizontal

Flat Vertical


Radical

Oval HorizontalSlim Tube Horizontal

Slim Tube ParallelOval Vertical

l Dedicated Specification Support and Technical teams

l Individual services to suit your project needs

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Contents

Flat 3

Line 9

Oval 25

Slim Tube 15

Radical 29

Technical Info 47

There’s much more to Stelrad


3 www.stelrad.com

flat horizontal

Flat

FH11 50 ∆t (75/65/20°C) 40 ∆t (65/55/20°C) 30 ∆t (55/45/20°C)

Height Length mm Heat output Watts Btu/hrHeat output

Watts Btu/hrHeat output

Watts Btu/hr

300500 235 802 176 600 121 413

1000 469 1601 351 1197 242 824

1400 657 2242 491 1677 338 1155

2000 938 3201 702 2395 483 1649

400

400 250 853 187 638 129 439

600 376 1283 281 960 194 661

800 501 1710 375 1279 258 881

1000 626 2137 468 1598 322 1100

1200 751 2563 562 1917 387 1320

1400 876 2990 655 2236 451 1540

1600 1002 3420 749 2558 516 1761

1800 1127 3846 843 2877 580 1981

2000 1252 4273 936 3196 645 2201

500

400 310 1058 232 791 160 545

600 464 1584 347 1185 239 816

800 619 2113 463 1580 319 1088

1000 774 2642 579 1976 399 1360

1200 929 3171 695 2372 478 1633

1400 1084 3700 811 2767 558 1905

1600 1238 4225 926 3161 638 2176

1800 1393 4754 1042 3556 717 2448

2000 1548 5283 1158 3952 797 2721

2200 1702 5812 1274 4346 877 2992

2400 1858 6341 1390 4742 957 3265

2600 2013 6871 1505 5135 1036 3535

2800 2168 7394 1621 5531 1116 3808

3000 2321 7924 1737 5926 1196 4080

600

400 364 1242 272 929 187 640

600 547 1867 409 1396 282 961

800 729 2488 545 1861 375 1281

1000 911 3109 681 2326 469 1601

1200 1093 3730 818 2790 563 1921

1400 1275 4352 954 3255 657 2241

1600 1458 4976 1091 3722 751 2563

1800 1640 5597 1227 4187 845 2883

2000 1822 6218 1363 4651 938 3203

2200 2005 6840 1499 5115 1032 3521

2400 2168 7461 1635 5579 1126 3841

2600 2368 8081 1772 6046 1220 4163

2800 2550 8708 1908 6511 1314 4483

3000 2734 9329 2044 6975 1407 4802

700

400 415 1417 311 1060 214 730

600 623 2125 466 1589 321 1094

800 830 2833 621 2119 428 1459

1000 1038 3542 776 2649 535 1824

1200 1246 4250 932 3179 641 2189

1400 1453 4958 1087 3709 748 2554

1600 1661 5667 1242 4239 855 2918

1800 1868 6375 1398 4768 962 3283

2000 2076 7083 1553 5298 1069 3648

Stelrad Planar

600

400

300

500

K2K1

Height

30 ΔtLength

mm Sections Heat output


Watts Btu/hr

500100014002000

400600800

100012001400160018002000

400600800

100012001400160018002000

400600800

100012001400160018002000

15304260121824303642485460121824303642485460121824303642485460

121242338483129194258322387451516580645160239319399478558638717797187282375469563657751845938

413824

11541648

439661880

110013201539176119802200

545815

1088136016321905217524482720

640961

1281160119212240256228823202

239478670957243364485606727849970

10911212290436581727872

1017116313081453337505673842

10101178134615151683

817163222863265828

12411655206824812896330937234136991

14881984247929753470396844634959114917222297287134464020459351685742

K2K1

Heat outputWatts Btu/hr


176351491702187281375468562655749843936232347463579695811926

10421158

272409545681818954

109112271363

600119716772394

638960

1279159819172236255728763195

79111841580197523712767316035553951

92913961861232527903254372141864650

348695973

1390352528705880

10561233140815851761

422634844

105512661477168919002111

489733978

122214671711195522002444

1187237133204742120218022404300436044206480654086008143921622881360143215041576364837202166925013336417050055839667175068341

40 Δt

∆t50 is the UK’s industry standard for heating outputs, which has an operating temperature of 75/65/20°C if you havea low temperature heat source you may wish to consider ∆t40 or ∆t30 output.


4

flat horizontal

Flat

FH22 50 ∆t (75/65/20°C) 40 ∆t (65/55/20°C) 30 ∆t (55/45/20°C)



Watts Btu/hr

300500 465 1587 348 1187 239 817

1000 929 3171 695 2372 478 1633

1400 1301 4440 973 3321 670 2287

2000 1858 6341 1390 4743 957 3266

400

400 471 1608 352 1202 243 828

600 706 2410 528 1802 364 1241

800 942 3215 705 2405 485 1656

1000 1177 4017 880 3005 606 2069

1200 1412 4819 1056 3605 727 2482

1400 1648 5625 1233 4207 849 2897

1600 1883 6427 1408 4807 970 3310

1800 2119 7232 1585 5410 1091 3725

2000 2354 8034 1761 6010 1212 4138

500

400 564 1925 422 1440 290 991

600 847 2891 634 2162 436 1489

800 1129 3853 844 2882 581 1984

1000 1411 4816 1055 3602 727 2480

1200 1693 5778 1266 4322 872 2976

1400 1975 6741 1477 5042 1017 3471

1600 2258 7707 1689 5765 1163 3969

1800 2540 8669 1900 6484 1308 4465

2000 2822 9631 2111 7204 1453 4960

2200 3105 10595 2322 7922 1599 5454

2400 3386 11556 2533 8462 1744 5950

2600 3668 12518 2744 9364 1890 6447

2800 3950 13486 2955 10084 2035 6943

3000 4234 14448 3166 10803 2180 7438

600

400 654 2232 489 1670 337 1150

600 980 3345 733 2502 505 1723

800 1307 4461 978 3337 673 2297

1000 1634 5577 1222 4171 842 2872

1200 1961 6693 1467 5006 1010 3447

1400 2288 7809 1711 5841 1178 4022

1600 2614 8922 1955 6673 1346 4595

1800 2941 10038 2200 7508 1515 5169

2000 3268 11154 2444 8343 1683 5744

2200 3594 12269 2689 9175 1851 6317

2400 3922 13386 2934 10010 2020 6892

2600 4249 14502 3178 10842 2188 7465

2800 4576 15613 3422 11676 2356 8039

3000 4901 16729 3667 12511 2525 8614

700

400 739 2522 546 1861 381 1282

600 1095 3736 819 2794 564 1924

800 1460 4980 1092 3725 752 2565

1000 1824 6224 1365 4656 939 3206

1200 2189 7469 1637 5586 1127 3846

1400 2554 8713 1910 6517 1332 4487

1600 2919 9960 2184 7450 1503 5130

1800 3284 11205 2456 8381 1691 5770

2000 3649 12449 2729 9312 1879 6411

Stelrad Planar

600

400

300

500

K2K1

Height

30 ΔtLength

mm Sections Heat output


Watts Btu/hr

500100014002000

400600800

100012001400160018002000

400600800

100012001400160018002000

400600800

100012001400160018002000

15304260121824303642485460121824303642485460121824303642485460

121242338483129194258322387451516580645160239319399478558638717797187282375469563657751845938

413824

11541648

439661880

110013201539176119802200

545815

1088136016321905217524482720

640961

1281160119212240256228823202

239478670957243364485606727849970

10911212

290436581727872

1017116313081453

337505673842

10101178134615151683

817163222863265

82812411655206824812896330937234136

99114881984247929753470396844634959114917222297287134464020459351685742

K2K1



176351491702187281375468562655749843936232347463579695811926

10421158

272409545681818954

109112271363

600119716772394

638960

1279159819172236255728763195

79111841580197523712767316035553951

92913961861232527903254372141864650

348695973

1390352528705880

10561233140815851761

422634844

105512661477168919002111

489733978

122214671711195522002444

1187237133204742120218022404300436044206480654086008143921622881360143215041576364837202166925013336417050055839667175068341

40 Δt




5 www.stelrad.com

Flat Horizontal mounting bracketsAll dimensions in mm.

Floor mounting brackets available.

FH11 and FH22 (400, 500 & 600mm)

FH11 and FH22 (300mm)Dimensions mm mm mm mm

300 400 500 600

A 16 16 16 16

B 44 44 44 44

C - 216 316 416

D 144 244 344 444

E 77 77 77 77

F - 107 107 107

G 125 225 325 425

H 155 255 355 455

I 173 273 373 473

BC

D

A

I

GH

E E

GF

H

ID

AB

17

17

15 15

31

31

12

12

BC

D

A

I

GH

E E

GF

H

ID

AB

17

17

15 15

31

31

12

12

H

CD

EL

DC

L 400 500 – 1100 1200 1400 – 1800 2000 – 3000

H Number 2pc 3pc

300 C 117 150 250 250 250

500 E – – – – L/2+17

L 400 500 – 1100 1200 1400 – 1800 2000 2200 2400 2600 2800 3000

H Number 2pc 3pc 4pc 5pc

600 C 117 150 250 250 250 250

700 D – – – – 750 817 850 750 817 850

E – – – – – – – – – L/2+17

Flat Horizontal floor supports

EN 442 Certification Data - CETIAT tested in accordance with BS EN 442

Type FH11 FH22

Height 300 400 500 600 700 300 400 500 600 700

W/m at 75/65/20 469 629 774 911 1038 929 1177 1411 1634 1848

n-coefficients 1.30 1.29 1.28 1.27 1.27 1.29 1.30 1.31 1.32 1.33

Heated Surface Area (m²/m) 2.09 2.95 3.80 4.66 5.51 3.51 4.92 6.33 7.74 9.15

Weight (kg/m) 11.88 16.13 20.39 24.65 28.91 19.60 26.40 33.20 40.00 46.80

Water Contents (l/m) 1.89 2.34 2.80 3.25 3.77 3.70 4.67 5.63 6.60 7.63

Wall to tap centre (mm) 54 54 54 54 54 76 76 76 76 76

Flat


6

FH11 and FH22 lug positionsAll dimensions in mm.

A A

B

D

A A

C

= =

B

D

A A

B

D

400 - 1100 LONG 1200 - 1700 LONG

1800 - 3000 LONG

FH11Dimensions mm

A 400mm 117

A 500 – 1100mm 150

A 1200 – 2000mm 283

B All 60

C 1800 – 3000mm 17

FH22Dimensions mm

A 400 – 1100mm 133

A 1200 – 3000mm 267

B All 60

mm mm

300 155

400 255

500 355

600 455

DPanel

Height

Flat wall mounting informationAll dimensions in mm.

Flat bracket positionA = Closest to Wall

B = Furthest from Wall

(R) = Recommended Mounting Position(R) A {

B {

86

54

100

68

(R) A {

B {

125

76

139

90

FH11

(R) A {

B {

86 (3.38)

54 (2.13)

100 (3.94)

68 (2.68)

FH22

Pressure drops

Flat piping options

(R) A {

B {

125

76

139

90

Flat

100000

10000

1000

100

1010 100 1000

FH22

FH11

PRES

SURE

DRO

P Pa

FLOW RATE Kg/hr


7 www.stelrad.com

Flat Vertical mounting brackets

Flat Vertical wall mounting informationAll dimensions in mm.

H4

H3

H2

28 28

28

77

102

129

28

50

LENGTH - 56

LENGTH

Height H2 H3 H4

mm mm mm mm

1800 70 830 1590

2000 70 930 1790

2200 70 1030 1990

Comes complete with Stelrad’s class leading safety bracket.

flat vertical

FV22 50 ∆t (75/65/20°C) 40 ∆t (65/55/20°C) 30 ∆t (55/45/20°C)



Watts Btu/hr

1800400 1476 5036 1104 3767 760 2594

500 1845 6295 1380 4709 950 3242

600 2214 7554 1656 5651 1140 3890

700 2583 8813 1932 6592 1330 4539

2000400 1584 5405 1185 4043 816 2783

500 1980 6756 1481 5053 1020 3479

600 2376 8107 1777 6064 1224 4175

700 2772 9458 2073 7075 1428 4871

2200400 1692 5773 1266 4318 871 2973

500 2115 7216 1582 5398 1089 3716

600 2538 8660 1898 6477 1307 4460

700 2961 10103 2215 7557 1525 5203


Type FV22

Height 1800 2000 2200

W/m at 75/65/20 3690 3960 4230

n-coefficients 1.32 1.33 1.33

Heated Surface Area (m²/m) 29.90 37.74 38.66

Weight (kg/m) 105.30 116.40 126.60

Water Contents (l/m) 15.90 17.70 20.10

Wall to tap centre (mm) 77 77 77

Flat

2000

2200

1800

2000

2200

1800

K2Stelrad Planar Vertical

Height Lengthmm Sections

400500600700400500600700400500600700

121518211215182112151821

760950

11401330816

102012241428871

108913071525

K2Weights & Measures

HeightLength

mm inWall to tap

centremm

Dryweight

Kg

WatercontentLitres

Surfaceaream2/m

400500600700400500600700400500600700

15.719.723.627.615.719.723.627.615.719.723.627.6

656565656565656565656565

42.1252.6563.1873.7146.5658.2069.8481.4850.6463.3075.9688.62

6.367.959.54

11.137.088.85

10.6212.398.04

10.0512.0614.07

11.9614.9517.9420.9315.1018.8722.6426.4215.4619.3023.1627.02

40 Δt

110413801656193211851481177720731266158218982215

376747095651659240435053606470754318539864777557

30 Δt

259432423890453927833479417548712973371644605203

EN 442 Certification Data – CETIAT tested in accordance with BS EN 442

TypeHeightW/m at 75/65/20n-coefficientsHeated Surface Area (m2/m)Weight (kg/m)

Wall to tap centre (mm)

Water Contents (l/m)

K21800 2000 22003690 3960 42301.32 1.33 1.33

29.90 37.74 38.66105.30 116.40 126.60

77 7777

15.90 17.70 20.10

301822043018220530182206301822073020220430202205302022063020220730222204302222053022220630222207

301822043018220530182206301822073020220430202205302022063020220730222204302222053022220630222207

UIN UINWatts Btu/hr Watts Btu/hrHeat output Heat output


8

Flat piping optionsFV22 50 ∆t (75/65/20°C) 40 ∆t (65/55/20°C) 30 ∆t (55/45/20°C)



Watts Btu/hr

1800400 1476 5036 1104 3767 760 2594

500 1845 6295 1380 4709 950 3242

600 2214 7554 1656 5651 1140 3890

700 2583 8813 1932 6592 1330 4539

2000400 1584 5405 1185 4043 816 2783

500 1980 6756 1481 5053 1020 3479

600 2376 8107 1777 6064 1224 4175

700 2772 9458 2073 7075 1428 4871

2200400 1692 5773 1266 4318 871 2973

500 2115 7216 1582 5398 1089 3716

600 2538 8660 1898 6477 1307 4460

700 2961 10103 2215 7557 1525 5203

Pressure drops

Flat

10000

1000

100

10 100 1000

FV22

PRES

SURE

DRO

P Pa

FLOW RATE Kg/hr


9 www.stelrad.com

LH11 50 ∆t (75/65/20°C) 40 ∆t (65/55/20°C) 30 ∆t (55/45/20°C)



Watts Btu/hr

300500 235 802 176 600 121 413

1000 469 1601 351 1197 242 824

1400 657 2242 491 1677 338 1155

2000 938 3201 702 2395 483 1649

500

400 298 1017 223 761 153 524

600 448 1529 335 1144 231 787

800 597 2038 447 1524 307 1049

1000 746 2546 558 1904 384 1311

1200 895 3055 669 2285 461 1573

1400 1044 3563 781 2665 538 1835

1600 1194 4075 893 3048 615 2099

1800 1343 4584 1005 3429 692 2361

2000 1492 5092 1116 3809 768 2622

600

400 348 1188 260 888 179 612

600 522 1782 390 1333 269 918

800 696 2375 521 1777 358 1223

1000 870 2969 651 2221 448 1529

1200 1044 3563 781 2665 538 1835

1400 1218 4157 911 3109 627 2141

1600 1392 4751 1041 3554 717 2447

1800 1566 5345 1171 3998 806 2753

2000 1740 5939 1302 4442 896 3058

LH22 50 ∆t (75/65/20°C) 40 ∆t (65/55/20°C) 30 ∆t (55/45/20°C)



Watts Btu/hr

300500 449 1532 335 1148 231 788

1000 898 3064 671 2291 462 1577

1400 1257 4289 940 3208 647 2208

2000 1796 6128 1343 4583 924 3155

500

400 555 1894 415 1417 286 976

600 833 2843 623 2127 429 1464

800 1110 3788 830 2834 572 1951

1000 1388 4737 1038 3543 715 2440

1200 1666 5686 1246 4253 858 2928

1400 1943 6631 1453 4960 1001 3415

1600 2221 7580 1661 5670 1144 3904

1800 2498 8526 1869 6377 1286 4391

2000 2776 9474 2076 7087 1430 4879

600

400 640 2184 479 1634 330 1125

600 961 3280 719 2453 495 1689

800 1281 4372 958 3270 660 2252

1000 1601 5464 1198 4087 825 2814

1200 1921 6556 1437 4904 989 3377

1400 2241 7649 1676 5721 1154 3939

1600 2562 8744 1916 6541 1319 4503

1800 2882 9836 2156 7358 1484 5066

2000 3202 10928 2395 8174 1649 5628

Line

line horizontal


10

LH11 50 ∆t (75/65/20°C) 40 ∆t (65/55/20°C) 30 ∆t (55/45/20°C)



Watts Btu/hr

300500 235 802 176 600 121 413

1000 469 1601 351 1197 242 824

1400 657 2242 491 1677 338 1155

2000 938 3201 702 2395 483 1649

500

400 298 1017 223 761 153 524

600 448 1529 335 1144 231 787

800 597 2038 447 1524 307 1049

1000 746 2546 558 1904 384 1311

1200 895 3055 669 2285 461 1573

1400 1044 3563 781 2665 538 1835

1600 1194 4075 893 3048 615 2099

1800 1343 4584 1005 3429 692 2361

2000 1492 5092 1116 3809 768 2622

600

400 348 1188 260 888 179 612

600 522 1782 390 1333 269 918

800 696 2375 521 1777 358 1223

1000 870 2969 651 2221 448 1529

1200 1044 3563 781 2665 538 1835

1400 1218 4157 911 3109 627 2141

1600 1392 4751 1041 3554 717 2447

1800 1566 5345 1171 3998 806 2753

2000 1740 5939 1302 4442 896 3058

LH22 50 ∆t (75/65/20°C) 40 ∆t (65/55/20°C) 30 ∆t (55/45/20°C)



Watts Btu/hr

300500 449 1532 335 1148 231 788

1000 898 3064 671 2291 462 1577

1400 1257 4289 940 3208 647 2208

2000 1796 6128 1343 4583 924 3155

500

400 555 1894 415 1417 286 976

600 833 2843 623 2127 429 1464

800 1110 3788 830 2834 572 1951

1000 1388 4737 1038 3543 715 2440

1200 1666 5686 1246 4253 858 2928

1400 1943 6631 1453 4960 1001 3415

1600 2221 7580 1661 5670 1144 3904

1800 2498 8526 1869 6377 1286 4391

2000 2776 9474 2076 7087 1430 4879

600

400 640 2184 479 1634 330 1125

600 961 3280 719 2453 495 1689

800 1281 4372 958 3270 660 2252

1000 1601 5464 1198 4087 825 2814

1200 1921 6556 1437 4904 989 3377

1400 2241 7649 1676 5721 1154 3939

1600 2562 8744 1916 6541 1319 4503

1800 2882 9836 2156 7358 1484 5066

2000 3202 10928 2395 8174 1649 5628

Line


Type LH11 LH22

Height 300 500 600 300 500 600

W/m at 75/65/20 470 746 870 898 1388 1634

n-coefficients 1.26 1.28 1.28 1.30 1.31 1.32

Heated Surface Area (m²/m) 2.09 3.80 4.66 3.51 6.33 7.74

Weight (kg/m) 14.13 20.23 24.27 19.30 32.03 38.40

Water Contents (l/m) 1.81 2.77 3.23 3.10 5.17 6.20

Wall to tap centre (mm) 54 54 54 – – –

Floor standing – – – 76 76 76

Line Horizontal 300mm, 500mm & 600mm wall mounting informationAll dimensions in mm. Floor mounting brackets available.

LH11

63

54

88

LH22

102

76

127

LH11 and LH22 lug positionsAll dimensions in mm.

A LH11 LH22

Length mm mm

400mm 117 133

500 – 1100mm 150 133

1200 – 1600mm 283 267

1800 – 2000mm 3rd lug in rad. centre*

*LH11 + 17mm

3rd lug in rad center (LH11 + 17mm)

Radiator length: 400 to 1600mm (in 200mm steps)

Radiator length: 1800 to 2000mm

3rd lug in rad center (LH11 + 17mm)

Radiator length: 400 to 1600mm (in 200mm steps)

Radiator length: 1800 to 2000mm


11 www.stelrad.com

Pressure drops

Line Horizontal piping options

Line

100000

10000

1000

100

1010 100 1000

LH22

LH11

PRES

SURE

DRO

P Pa

FLOW RATE Kg/hr


12

LV22 50 ∆t (75/65/20°C) 40 ∆t (65/55/20°C) 30 ∆t (55/45/20°C)



Watts Btu/hr

1800400 1476 5036 1104 3767 760 2594

500 1845 6295 1380 4709 950 3242

600 2214 7554 1656 5651 1140 3890

700 2583 8813 1932 6592 1330 4539

2000400 1588 5405 1188 4043 818 2784

500 1980 6756 1481 5053 1020 3479

600 2376 8107 1777 6064 1224 4175

700 2772 9458 2073 7075 1428 4871

2200300 1269 4330 949 3239 654 2230

400 1692 5773 1266 4318 871 2973

500 2115 7216 1582 5398 1089 3716

600 2538 8660 1898 6477 1307 4460

LV20 50 ∆t (75/65/20°C) 40 ∆t (65/55/20°C) 30 ∆t (55/45/20°C)



Watts Btu/hr

1600300 693 2365 518 1769 357 1218

500 1155 3942 864 2949 595 2030

600 1386 4730 1037 3538 714 2436

1800300 760 2594 568 1940 391 1336

500 1266 4321 947 3232 652 2225

600 1519 5184 1136 3878 782 2670

2000300 824 2812 616 2104 424 1448

500 1374 4689 1028 3508 708 2415

600 1649 5628 1233 4210 849 2898

2200300 887 3027 663 2264 457 1559

500 1479 5048 1106 3776 762 2600

600 1775 6058 1328 4531 914 3120

line vertical


Type LV20 LV22

Height 1600 1800 2000 2200 1800 2000 2200

W/m at 75/65/20 2310 2532 2748 2958 3690 3960 4230

n-coefficients 1.27 1.27 1.27 1.27 1.32 1.33 1.33

Heated Surface Area (m²/m) 7.33 8.25 9.17 10.09 29.90 37.74 38.66

Weight (kg/m) 77.70 86.70 95.40 105.60 105.30 116.40 126.60

Water Contents (l/m) 14.10 16.20 18.30 20.10 15.90 17.70 20.10

Wall to tap centre (mm) 65 65 65 65 77 77 77

Line


13 www.stelrad.com

Line Vertical wall mounting informationAll dimensions in mm.

Line Vertical mounted brackets

H4

H3

H2

28 28

28

6577

77102

104129

28

50

56

LV22

Height H2 H3 H4

mm mm mm mm

1600 70 730 1390

1800 70 830 1590

2000 70 930 1790

2200 70 1030 1990

28 28

28

6577

77102

104129

28

50

56

Pressure drops

28 28

28

6577

77102

104129

28

50

56

28 28

28

6577

77102

104129

28

50

56

LV20

28 28

28

6577

77102

104129

28

50

56

28 28

28

6577

77102

104129

28

50

56

Line Vertical piping options

Line

10000

1000

100

10 100 1000

LV20LV22

PRES

SURE

DRO

P Pa

FLOW RATE Kg/hr


14

line perimeter lo line

LP22 50 ∆t (75/65/20°C) 40 ∆t (65/55/20°C) 30 ∆t (55/45/20°C)



Watts Btu/hr

200500 307 1048 230 784 158 540

1000 614 2096 459 1567 316 1079

1400 860 2935 643 2196 443 1512

2000 1228 4191 919 3135 632 2158

LP21 50 ∆t (75/65/20°C) 40 ∆t (65/55/20°C) 30 ∆t (55/45/20°C)



Watts Btu/hr

200500 242 826 181 618 125 425

1000 483 1648 361 1233 249 849

1400 676 2307 506 1726 348 1188

2000 966 3297 723 2466 497 1698

Line Perimeter Lo Line panel informationAll dimensions in mm.

LP21 LP22

200

102 Line Perimeter Lo Line

floor mounting information

150

Floor mounting bracket comes as standard (200mm only)

200

102

28 28

28

6577

77102

104129

28

50

56

28 28

28

6577

77102

104129

28

50

56

Line


Type LP21 LP22

Height 200 200

W/m at 75/65/20 483 614

n-coefficients 1.31 1.29

Heated Surface Area (m²/m) 1.51 2.10

Weight (kg/m) 12.14 13.15

Water Contents (l/m) 2.64 2.70

Wall to tap centre (mm) - -

Floor standing 76 76

200

200

LP21 LP22

200


15 www.stelrad.com

Slim

Tub

e

Line Perimeter Lo Line piping options

Pressure drops

LP21

LP222

2LP21

LP222

2

PRES

SURE

DRO

P Pa

FLOW RATE Kg/hr


16

Slim

Tub

e

Slim tUBe SinGle

STS 50 ∆t (75/65/20°C) 40 ∆t (65/55/20°C) 30 ∆t (55/45/20°C)



Watts Btu/hr

440

500 382 1303 286 975 197 671

600 458 1563 343 1169 236 805

700 535 1825 400 1365 276 940

800 611 2085 457 1559 315 1074

900 688 2347 515 1756 354 1209

1000 764 2607 571 1950 393 1342

1100 840 2866 628 2144 433 1476

1200 917 3129 686 2340 472 1611

1400 1070 3651 800 2731 551 1880

1600 1222 4169 914 3119 629 2147

1800 1375.2 4692 1029 3510 708 2416

2000 1528 5214 1143 3900 787 2685

2200 1681 5736 1257 4290 866 2954

2400 1834 6258 1372 4681 945 3223

2600 1986 6776 1486 5069 1023 3490

2800 2139 7298 1600 5459 1102 3759

3000 2292 7820 1714 5850 1180 4027

588

500 500 1706 374 1276 258 879

600 599 2044 448 1529 308 1053

700 699 2385 523 1784 360 1228

800 799 2726 598 2039 411 1404

900 899 3067 672 2294 463 1580

1000 999 3409 747 2550 514 1755

1100 1099 3750 822 2805 566 1931

1200 1199 4091 897 3060 617 2107

1400 1399 4773 1046 3570 720 2458

1600 1598 5452 1195 4078 823 2808

1800 1798 6135 1345 4589 926 3159

2000 1998 6817 1495 5099 1029 3511

2200 2198 7500 1644 5610 1132 3862

2400 2398 8182 1794 6120 1235 4214

2600 2597 8861 1943 6628 1337 4563

2800 2797 9543 2092 7138 1440 4915

3000 2997 10226 2242 7649 1543 5266

736

500 606 2068 453 1547 312 1065

600 727 2481 544 1855 374 1277

700 848 2893 634 2164 437 1490

800 970 3310 726 2476 500 1704

900 1091 3722 816 2784 562 1917

1000 1212 4135 907 3093 624 2130

1100 1333 4548 997 3402 686 2342

1200 1454 4961 1088 3711 749 2555

1400 1697 5790 1269 4331 874 2982

1600 1939 6616 1450 4949 999 3407

1800 2182 7445 1632 5569 1124 3834

2000 2424 8271 1813 6186 1248 4259

2200 2666 9096 1994 6804 1373 4685

2400 2909 9926 2176 7424 1498 5112

2600 3151 10751 2357 8042 1623 5537

2800 3394 11580 2539 8662 1748 5964

3000 3636 12406 2720 9280 1873 6389

Please note: All products over 2 metres wide will take 6 weeks to be delivered from date of order. When this product is ordered it cannot be cancelled.


17 www.stelrad.com

6040

45

15

150 M8

65 128

Slim

Tub

e

L = 500-1400

H =

440

-736

60

40

150 150 (5.90)

L = 1600-3000

150

m8

60

2

70

Slim Tube Single fixing positionsAll dimensions in mm.

Slim Tube Single wall mounting information

All dimensions in mm.

15

10

10

4540

45

27

45

2750

50 35

30

70min

D2 D2

DI

D DI 80

D

15

10

Type

From back of radiator to wall

D

From wall to centre of connections

D1


D2

mm mm mm

Slim Tube Single 9 44 69

Slim Tube single, double and perimeterEN 442 Certification Data - CETIAT tested in accordance with BS EN 442

Type STS

Height 440 588 736

W/m at 75/65/20 764 999 1212



Weight (kg/m) 18.23 25.01 31.98




18

Slim Tube Single piping options

Slim Tube Single mounting positions


Must be specified at time of ordering as they are securely welded during manufacture.

150

70150

100

Floor mounting brackets illustration.

This is a made to order product and once ordered it cannot be cancelled.

Slim

Tub

e


19 www.stelrad.com

Slim

Tub

e


Slim tUBe DoUBle

STD 50 ∆t (75/65/20°C) 40 ∆t (65/55/20°C) 30 ∆t (55/45/20°C)



Watts Btu/hr

440

500 673 2296 503 1718 347 1183

600 808 2757 604 2062 416 1420

700 942 3214 705 2404 485 1655

800 1077 3675 806 2749 555 1892

900 1211 4132 906 3091 624 2128

1000 1346 4593 1007 3435 693 2365

1100 1481 5053 1108 3780 763 2602

1200 1615 5510 1208 4122 832 2838

1400 1884 6428 1409 4808 970 3311

1600 2154 7349 1611 5497 1109 3785

1800 2423 8267 1812 6184 1248 4258

2000 2692 9185 2014 6870 1386 4730

2200 2961 10103 2215 7557 1525 5203

2400 3230 11021 2416 8244 1663 5676

2600 3500 11942 2618 8933 1803 6150

2800 3769 12860 2819 9619 1941 6623

3000 4038 13778 3020 10306 2080 7095

588

500 827 2822 619 2111 426 1453

600 992 3385 742 2532 511 1743

700 1158 3951 866 2955 596 2035

800 1323 4514 990 3377 681 2325

900 1489 5080 1114 3800 767 2616

1000 1654 5643 1237 4221 852 2906

1100 1819 6206 1361 4642 937 3196

1200 1985 6773 1485 5066 1022 3488

1400 2316 7902 1732 5911 1193 4070

1600 2646 9028 1979 6753 1363 4649

1800 2977 10158 2227 7598 1533 5231

2000 3308 11287 2474 8443 1704 5813

2200 3639 12416 2722 9287 1874 6394

2400 3970 13546 2970 10132 2045 6976

2600 4300 14672 3216 10974 2215 7556

2800 4631 15801 3464 11819 2385 8138

3000 4962 16930 3712 12664 2555 8719

736

500 1046 3569 782 2670 539 1838

600 1255 4282 939 3203 646 2205

700 1464 4995 1095 3736 754 2573

800 1674 5712 1252 4272 862 2942

900 1883 6425 1408 4806 970 3309

1000 2092 7138 1565 5339 1077 3676

1100 2301 7851 1721 5873 1185 4043

1200 2510 8564 1877 6406 1293 4411

1400 2929 9994 2191 7475 1508 5147

1600 3347 11420 2504 8542 1724 5881

1800 3766 12850 2817 9611 1939 6618

2000 4184 14276 3130 10678 2155 7352

2200 4602 15702 3442 11745 2370 8087

2400 5021 17132 3756 12814 2586 8823

2600 5439 18558 4068 13881 2801 9557

2800 5858 19987 4382 14951 3017 10294

3000 6276 21414 4694 16017 3232 11028


20

150

20

M8

Slim Tube Double fixing positionsAll dimensions in mm.

55 18

110

L = 500-1400H

= 4

14-7

36

150 150

4060

L = 1600-3000

150 150

Slim Tube Double wall mounting information


15

10

10

4540

45

27

45

2750

50 35

30

70min

D2 D2

DI

D DI 80

D

15

10

Type


D


D1


D2

mm mm mm

Slim Tube Double 27 94 119

Slim Tube single, double and perimeterEN 442 Certification Data - CETIAT tested in accordance with BS EN 442

Type STD

Height 440 588 736

W/m at 75/65/20 1346 1654 2092



Weight (kg/m) 32.79 45.01 57.44



Slim

Tub

e


21 www.stelrad.com



Slim

Tub

e

Slim Tube Double mounting positions



150

70150

100

Slim Tube Double piping options

Slim tUBe vertical

STV 50 ∆t (75/65/20°C) 40 ∆t (65/55/20°C) 30 ∆t (55/45/20°C)



Watts Btu/hr

1800440 780 2661 583 1991 402 1371

588 1040 3548 778 2654 536 1827

736 1300 4436 972 3318 670 2284

2000440 870 2968 651 2220 448 1529

588 1160 3958 868 2961 597 2038

736 1450 4947 1085 3701 747 2548

Slim Tube VerticalEN 442 Certification Data - CETIAT tested in accordance with BS EN 442

Type STV

Height 1800 2000

W/m at 75/65/20 1770 1972



Weight (kg/m) 45.14 49.77


Wall to tap centre (mm) 44 44

120


22

Slim Tube Double piping options

Slim Tube Vertical wall mounting information


15

10

10

4540

45

27

45

2750

50 35

30

70min

D2 D2

DI

D DI 80

D

Type


D


D1


D2

mm mm mm

Slim Tube Vertical 25 44 70

Slim Tube Vertical fixing positionsAll dimensions in mm.

H =

1800

-200

0

107 107

115115

107

55

115

18

20

Hardware pack includes air vents, saddle clips & branding clips.

Slim

Tub

e

Type STV

Height 1800 2000

W/m at 75/65/20 1770 1972



Weight (kg/m) 45.14 49.77



120


23 www.stelrad.com

Slim

Tub

e

Slim tUBe parallel

STP 50 ∆t (75/65/20°C) 40 ∆t (65/55/20°C) 30 ∆t (55/45/20°C)



Watts Btu/hr

1800320 872 2975 652 2225 449 1532

440 1199 4091 897 3060 617 2107

520 1417 4835 1060 3616 730 2490

640 1744 5951 1305 4451 898 3065

2000320 978 3337 732 2496 504 1719

440 1344 4586 1005 3430 692 2362

520 1589 5422 1189 4055 818 2792

640 1956 6674 1463 4992 1007 3437

Slim Tube Parallel fixing positionsAll dimensions in mm.

44

Slim Tube Parallel wall mounting information


Type

Back face to finished wall

D

Connection centres from finished wall

D1

Front face from finished wall

D2

mm mm mm

Slim Parallel 35 50 130

15

10

10

4540

45

27

45

2750

50 35

30

70min

D2 D2

DI

D DI 80

D

Slim Tube ParallelEN 442 Certification Data - CETIAT tested in accordance with BS EN 442

Type STP

Height 1800 2000

W/m at 75/65/20 2725 3056



Weight (kg/m) 77.81 78.5



15 (0.59)

10 (0.39)

10 (0.39)

45 ( 1

.77)

40 ( 1

.57)

45 (1.77)

27 (1.06)

45 ( 1

.77)

70m

in( 2

.76)

27 (1.06) D2 D2

DI

D DI80

(3.15)

D

50 (1.97)

50 (1.97) 35 (1.38)

30 (1.18)


24

Slim tUBe perimeter lo line

STL 50 ∆t (75/65/20°C) 40 ∆t (65/55/20°C) 30 ∆t (55/45/20°C)



Watts Btu/hr

144

800 530 1808 396 1353 273 931

1000 663 2262 496 1692 341 1165

1200 796 2716 595 2032 410 1399

1400 928 3166 694 2368 478 1631

1600 1061 3620 794 2708 546 1864

1800 1193 4071 892 3045 614 2096

2000 1326 4524 992 3384 683 2330

2200 1459 4978 1091 3724 751 2564

292

800 898 3064 672 2292 462 1578

1000 1122 3828 839 2864 578 1972

1200 1346 4593 1007 3435 693 2365

1400 1571 5360 1175 4009 809 2761

1600 1795 6125 1343 4581 924 3154

1800 2020 6892 1511 5155 1040 3550

2000 2244 7657 1679 5727 1156 3943

2200 2468 8421 1846 6299 1271 4337


Slim Tube Parallel piping options

Slim

Tub

e

Slim Tube Perimeter Lo LineEN 442 Certification Data - CETIAT tested in accordance with BS EN 442

Type STP

Height 144 292

W/m at 75/65/20 663 1122



Weight (kg/m) 12.57 25.05




25 www.stelrad.com

Ova

l

L = 800-1400

H=

144-

292

6040

150 150

128 M8

20

55

18

110

L = 1600-2200L = 800-2200

H =

141 60

40

150 150

*Welded-on foot supports recommended

Slim Tube Perimeter Lo Line mounting positions



150

70150

100



150 150

Slim Tube Perimeter Lo Line piping options

Slim Tube Perimeter Lo Line fixing positionsAll dimensions in mm.

Slim Tube Perimeter Lo Line wall mounting information


15

10

10

4540

45

27

45

2750

50 35

30

70min

D2 D2

DI

D DI 80

D

15

10

Type


D


D1


D2

mm mm mm

Slim Tube Double 27 94 119

120


26

Ova

l

oval horizontal

50 ∆t (75/65/20°C) 40 ∆t (65/55/20°C) 30 ∆t (55/45/20°C)

HeightLength

mmColumns Heat output Watts Btu/hr

Heat output Watts Btu/hr


300

444 3 288 983 215 735 148 506

628 3 416 1420 311 1062 214 731

858 3 576 1966 431 1470 297 1012

1042 3 704 2403 527 1797 363 1237

1272 3 864 2949 646 2206 445 1519

1456 3 992 3386 742 2533 511 1744

1870 3 1280 4369 957 3268 659 2250

444 4 377 1287 282 962 194 663

628 4 545 1860 408 1391 281 958

858 4 754 2573 564 1925 388 1325

1042 4 922 3147 690 2354 475 1621

127 2 4 1131 3860 846 2887 582 1988

500

628 2 499 1703 373 1274 257 877

858 2 691 2358 517 1764 356 1215

1042 2 845 2884 632 2157 435 1485

1272 2 1037 3539 776 2647 534 1823

444 3 464 1584 347 1185 239 816

628 3 671 2290 502 1713 346 1179

858 3 929 3171 695 2372 478 1633

1042 3 1135 3874 849 2898 585 1995

1272 3 1393 4754 1042 3556 717 2448

1456 3 1600 5461 1197 4085 824 2812

1870 3 2064 7044 1544 5269 1063 3628

444 4 608 2075 455 1552 313 1069

628 4 879 3000 657 2244 453 1545

858 4 1217 4154 910 3107 627 2139

1042 4 1487 5075 1112 3796 766 2614

1272 4 1825 6229 1365 4659 940 3208

600

628 2 589 2010 441 1504 303 1035

858 2 815 2782 610 2081 420 1433

142 2 997 3403 746 2545 513 1752

1272 2 1223 4174 915 3122 630 2150

444 3 548 1870 410 1399 282 963

628 3 792 2703 592 2022 408 1392

858 3 1096 3741 820 2798 564 1926

1042 3 1340 4573 1002 3421 690 2355

1272 3 1644 5611 1230 4197 847 2890

1456 3 1888 6444 1412 4820 972 3319

1870 3 2436 8314 1822 6219 1255 4282

444 4 718 2451 537 1833 370 1262

628 4 1037 3539 776 2647 534 1823

858 4 1436 4901 1074 3666 740 2524

1042 4 1756 5993 1313 4483 904 3087

1272 4 2155 7355 1612 5502 1110 3788

750

858 3 1337 4563 1000 3413 689 2350

1042 3 1635 5580 1223 4174 842 2874

1272 3 2006 6846 1500 5121 1033 3526

1456 3 2303 7860 1723 5879 1186 4048

1870 3 2972 10143 2223 7587 1531 5224

444 4 877 2993 656 2239 452 1541

628 4 1266 4321 947 3232 652 2225

858 4 1753 5983 1311 4475 903 3081

1042 4 2143 7314 1603 5471 1104 3767

1272 4 2630 8976 1967 6714 1354 4623

T2 T3 T4


27 www.stelrad.com

Ova

l

Oval Horizontal typical valve installationAll dimensions in mm.

Oval Horizontal typical bracket installationAll dimensions in mm.

Typical valve installation

Typical bracket installation

Optional ExtraFloor Fixing Kit

Blank plugs

Angle valve (not included)

The air vent 12.7


BSP 1/2” 12.7BSP 1/2” 12.7

Note: Factory fitted bushes are welded in place and not removable.If installing TBOE (Top Bottom Opposite End) please note that the radiator MUST be inverted.

Suitable for TBOB+BOE CONNECTION ONLY

Floor stands

Clamp

150mm recommendedminimum

WA

D2

D130 - 190

Bracket

BSP 1/2”

Pressure drops

85mm

55mm

100 - 150mm

Oval Horizontal optional floor mounting bracketsAll dimensions in mm.

Measurements using 10mm CVD Brackets SlotAdd 5mm if using 15mm Slot

WA D D2

2 Col 23 54 85

3 Col 23 73 123

4 Col 23 91 159

Brackets and Clamps Required

No. of sections

4 0 – 23

6 24 – 41




Blank plugs


The air vent 12.7


BSP 1/2” 12.7BSP 1/2” 12.7



Floor stands

Clamp


WA

D2

D130 - 190

Bracket

BSP 1/2”




Blank plugs


The air vent 12.7


BSP 1/2” 12.7BSP 1/2” 12.7



Floor stands

Clamp


WA

D2

D130 - 190

Bracket

BSP 1/2”


Type 2 Columns 3 Columns 4 Columns

Height 500 600 300 500 600 750 300 500 600 750

W/m at 75/65/20 835 985 696 1122 1324 1615 911 1469 1734 2117

n-coefficients 1.25 1.25 1.25 1.25 1.26 1.26 1.25 1.26 1.27 1.27

Heated Surface Area (m²/m) 1.52 1.96 1.52 2.39 3.04 3.7 1.96 3.26 4.13 5

Weight (kg/m) 17.39 21.74 15.22 26.09 30.43 36.96 21.74 36.96 43.48 54.35

Water Contents (l/m) 10.87 13.04 13.04 17.39 19.57 23.91 15.22 21.74 26.09 30.43

Wall to tap centre (mm) 54 / 59 54 / 59 73 / 78 73 / 78 73 / 78 73 / 78 91 / 96 91 / 96 91 / 96 91 / 96

Note: Factory fitted bushes are welded in place and not removable.

If installing TBOE (Top Bottom Opposite End) please note that the radiator MUST be inverted.




Blank plugs


The air vent 12.7


BSP 1/2” 12.7BSP 1/2” 12.7



Floor stands

Clamp


WA

D2

D130 - 190

Bracket

BSP 1/2”

PRES

SURE

DRO

P Pa

FLOW RATE 1/h


28

T2

oval vertical

50 ∆t (75/65/20°C) 40 ∆t (65/55/20°C) 30 ∆t (55/45/20°C)

HeightLength

mmColumns Heat output Watts Btu/hr



1800 352 2 868 2962 649 2216 447 1526444 2 1116 3809 835 2849 575 19622000 352 2 966 3297 723 2466 497 1698444 2 1242 4239 929 3171 640 21832500 352 2 1197 4085 895 3056 616 2104444 2 1539 5253 1151 3929 793 2705


Type 2 Columns

Height 1800 2000 2500

W/m at 75/65/20 2696 3000 3717



Weight (kg/m) 58.7 65.22 80.43


Wall to tap centre (mm) 54 / 59 54 / 59 54 / 59

Oval Vertical typical valve installationAll dimensions in mm.

Oval Vertical typical bracket installationAll dimensions in mm.




Blank plugs


The air vent 12.7


BSP 1/2” 12.7BSP 1/2” 12.7



Floor stands

Clamp


WA

D2

D130 - 190

Bracket

BSP 1/2”

Measurements using 10mm CVD Brackets SlotAdd 5mm if using 15mm Slot

WA D D2

2 Col 23 54 85

Brackets and Clamps Required

No. of sections

4 0 – 23




Blank plugs


The air vent 12.7


BSP 1/2” 12.7BSP 1/2” 12.7



Floor stands

Clamp


WA

D2

D130 - 190

Bracket

BSP 1/2”




Blank plugs


The air vent 12.7


BSP 1/2” 12.7BSP 1/2” 12.7



Floor stands

Clamp


WA

D2

D130 - 190

Bracket

BSP 1/2”




Blank plugs


The air vent 12.7


BSP 1/2” 12.7BSP 1/2” 12.7



Floor stands

Clamp


WA

D2

D130 - 190

Bracket

BSP 1/2”

Note: Factory fitted bushes are welded in place and not removable.

If installing TBOE (Top Bottom Opposite End) please note that the radiator MUST be inverted.

Ova

l


29 www.stelrad.com

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avin

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Pressure drops

85mm

55mm

100 - 150mm

Oval Vertical optional floor mounting bracketsAll dimensions in mm.




Blank plugs


The air vent 12.7


BSP 1/2” 12.7BSP 1/2” 12.7



Floor stands

Clamp


WA

D2

D130 - 190

Bracket

BSP 1/2”

PRES

SURE

DRO

P Pa

FLOW RATE 1/h


30

Ener

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RadiCal™

Improves energy efficiency and comfort whilst reducing bills.

A radiator that produces more comfort at less costThe power we use in buildings accounts for 40% of global consumption. And that has a massive impact on the environment. But with smarter energy management, our buildings can emit up to 60% less CO2. That’s something the European Union are moving towards, by making energy consumption standards stricter.

At Stelrad, we believe the heating industry has a major role to play, by developing systems that work so efficiently that they produce more heat at lower temperatures.

That’s why we’ve developed Stelrad Radical, the energy saving radiator. It produces more radiant heat than traditional radiators - saving energy while raising comfort levels. At less cost to the user, and to the environment. That’s a Radical step forward.

A radiator that reduces energy bills by up to 10.5%Your choice of radiator determines how comfortable the heating in your home feels. And how much that comfort costs. You know how a draught free room at 20°C can still feel uncomfortable?

•The energy saving radiant heat of the Stelrad Radical will soon fix that. And with the outstanding energy efficiency delivered by its preset valve, it reduces your bills by up to 10.5%, too.

•Thanks to the controlled flow of our unique direct intake technology, the water in the front panel reaches a temperature up to 50% higher than in a traditional radiator

•The Stelrad Radical energy saving radiator reaches its maximum temperature 23% faster than a traditional radiator

• It reaches its optimum performance level while a traditional heater is still heating up

•After only 2 minutes it offers up to 50% more radiant heat

•With higher radiant heat, the feeling of 20°C can be achieved at a lower temperature setting

The Stelrad Radical energy saving radiator’s unique and innovative technology raises comfort levels. And by working more efficiently, it reduces energy bills - with a saving of up to 10.5%.

Raising comfort levels with more radiant heatA radiator that delivers more heat, more efficiently.

Domestic heating is usually based on convection and radiation. With convection heating, hot air rises from the heating elements, cools down, descends via the wall and is heated again. With radiant heating, infrared radiation is sent directly around the room regardless of airflows like wind or drafts.

Radiant heat heats up the room, furniture and people, and is reflected back to create a more comfortable feeling similar to the rays of the sun. And standing in the sun always feels much warmer, even if the surrounding temperature is no higher than in the shadow - because it is radiant heat.


31 www.stelrad.com

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Weights & Measures

700

450

Stelrad Compact

Height

300

600

P1 K1

Lengthmm in

Wall to tapcentre

mm

Wall to tapcentre

mm

50010001500200025003000

400500600700800900

100011001200140016001800200022002400260028003000

400500600700800900

100011001200140016001800200022002400260028003000

400500600700800900

100011001200140016001800200022002400260028003000

19.739.459.178.798.4

118.115.719.723.627.631.535.439.443.347.255.163.070.978.786.694.5

102.4110.2118.115.719.723.627.631.535.439.443.347.255.163.070.978.786.694.5

102.4110.2118.115.719.723.627.631.535.439.443.347.255.163.070.978.786.694.5

102.4110.2118.1

------

46464646464646-

464646 -- -- ---

46464646464646 -

464646 -- -- ---- - - - - - - -- - - -- -- ---

515151515151515151515151515151515151515151515151515151515151515151515151515151515151515151515151515151515151515151515151

Wall to tapcentre

mm

626262626262626262626262626262626262626262626262626262626262626262626262626262626262626262626262626262626262626262626262

Wall to tapcentre

mm

737373737373737373737373737373737373737373737373737373737373737373737373737373737373737373737373737373737373737373737373


TypeHeightW/m at 75/65/20n-coefficientsHeated Surface Area (m2/m)Weight (kg/m)Water Contents (l/m)

2K+P1K1P300 450 600 700 300 450 600 700 300 450 600 700 300 450 600 700326 474 619 715 509 756 980 1117 745 1055 1345 1530 982 1371 1732 19611.28 1.33 1.33 1.33 1.32 1.31 1.29 1.29 1.33 1.33 1.34 1.34 1.33 1.33 1.33 1.340.68 1.03 1.37 1.60 2.09 3.37 4.66 5.51 2.44 3.84 5.24 6.18 3.51 5.62 7.74 9.156.64 9.82 13.00 15.12 9.31 14.51 19.70 22.90 14.29 22.04 29.80 34.50 16.80 25.90 35.00 40.531.89 2.57 3.25 3.77 1.89 2.57 3.25 3.77 3.70 5.15 6.60 7.63 3.70 5.15 6.60 7.63

P+ K2

K1 50 ∆t (75/65/20°C) 40 ∆t (65/55/20°C) 30 ∆t (55/45/20°C)

HeightLength

mmStraight

10mm UINAngle

10mm UINStraight

15mm UINAngle

15mm UINHeat output



Watts Btu/hr

300 1000 33111010S 33111010A 33111015S 33111015A 509 1737 381 1299 262 894

500400 35110410S 35110410A 35110415S 35110415A 333 1136 249 850 171 585

500 35110510S 35110510A 35110515S 35110515A 417 1423 312 1064 215 733

600 35110610S 35110610A 35110615S 35110615A 500 1706 374 1276 258 879

600400 36110410S 36110410A 36110415S 36110415A 392 1338 293 1000 202 689

500 36110510S 36110510A 36110515S 36110515A 490 1672 367 1251 252 861

600 36110610S 36110610A 36110615S 36110615A 588 2006 440 1501 303 1033

Weights & Measures

700

450

Stelrad Compact

Height

300

600

P1 K1

Lengthmm in

Wall to tapcentre

mm

Wall to tapcentre

mm

50010001500200025003000

400500600700800900

100011001200140016001800200022002400260028003000

400500600700800900

100011001200140016001800200022002400260028003000

400500600700800900

100011001200140016001800200022002400260028003000

19.739.459.178.798.4

118.115.719.723.627.631.535.439.443.347.255.163.070.978.786.694.5

102.4110.2118.1

15.719.723.627.631.535.439.443.347.255.163.070.978.786.694.5

102.4110.2118.1

15.719.723.627.631.535.439.443.347.255.163.070.978.786.694.5

102.4110.2118.1

------

46464646464646-

464646 -- -- ---

46464646464646 -

464646 -- -- ---- - - - - - - -- - - -- -- ---

515151515151515151515151515151515151515151515151515151515151515151515151515151515151515151515151515151515151515151515151

Wall to tapcentre

mm

626262626262626262626262626262626262626262626262626262626262626262626262626262626262626262626262626262626262626262626262

Wall to tapcentre

mm

737373737373737373737373737373737373737373737373737373737373737373737373737373737373737373737373737373737373737373737373


TypeHeightW/m at 75/65/20n-coefficientsHeated Surface Area (m2/m)Weight (kg/m)Water Contents (l/m)

2K+P1K1P300 450 600 700 300 450 600 700 300 450 600 700 300 450 600 700326 474 619 715 509 756 980 1117 745 1055 1345 1530 982 1371 1732 19611.28 1.33 1.33 1.33 1.32 1.31 1.29 1.29 1.33 1.33 1.34 1.34 1.33 1.33 1.33 1.340.68 1.03 1.37 1.60 2.09 3.37 4.66 5.51 2.44 3.84 5.24 6.18 3.51 5.62 7.74 9.156.64 9.82 13.00 15.12 9.31 14.51 19.70 22.90 14.29 22.04 29.80 34.50 16.80 25.90 35.00 40.531.89 2.57 3.25 3.77 1.89 2.57 3.25 3.77 3.70 5.15 6.60 7.63 3.70 5.15 6.60 7.63

P+ K2

K2 50 ∆t (75/65/20°C) 40 ∆t (65/55/20°C) 30 ∆t (55/45/20°C)

HeightLength

mmStraight

10mm UINAngle

10mm UINStraight

15mm UINAngle

15mm UINHeat output



Watts Btu/hr

300 1000 33221010S 33221010A 33221015S 33221015A 933 3,183 698 2381 480 1639

500

400 35220410S 35220410A 35220415S 35220415A 560 1911 419 1429 288 984

500 35220510S 35220510A 35220515S 35220515A 701 2392 524 1789 361 1232

600 35220610S 35220610A 35220615S 35220615A 841 2869 629 2146 433 1478

700 35220710S 35220710A 35220715S 35220715A 981 3347 734 2504 505 1724

800 35220810S 35220810A 35220815S 35220815A 1121 3825 839 2861 577 1970

900 35220910S 35220910A 35220915S 35220915A 1261 4303 943 3218 649 2216

1000 35221010S 35221010A 35221015S 35221015A 1401 4780 1048 3576 722 2462

1200 35221210S 35221210A 35221215S 35221215A 1681 5736 1257 4290 866 2954

1400 35221410S 35221410A 35221415S 35221415A 1961 6691 1467 5005 1010 3446

1600 35221610S 35221610A 35221615S 35221615A 2242 7650 1677 5722 1155 3940

1800 35221810S 35221810A 35221815S 35221815A 2522 8605 1886 6437 1299 4432

2000 35222010S 35222010A 35222015S 35222015A 2802 9560 2096 7151 1443 4924

600

400 36220410S 36220410A 36220415S 36220415A 647 2208 484 1651 333 1137

500 36220510S 36220510A 36220515S 36220515A 809 2760 605 2065 417 1422

600 36220610S 36220610A 36220615S 36220615A 970 3310 726 2476 500 1704

700 36220710S 36220710A 36220715S 36220715A 1132 3862 847 2889 583 1989

800 36220810S 36220810A 36220815S 36220815A 1294 4415 968 3303 666 2274

900 36220910S 36220910A 36220915S 36220915A 1455 4964 1088 3713 749 2557

1000 36221010S 36221010A 36221015S 36221015A 1617 5517 1210 4127 833 2841

1100 36221110S 36221110A 36221115S 36221115A 1779 6070 1331 4540 916 3126

1200 36221210S 36221210A 36221215S 36221215A 1940 6619 1451 4951 999 3409

1400 36221410S 36221410A 36221415S 36221415A 2264 7725 1693 5778 1166 3978

1600 36221610S 36221610A 36221615S 36221615A 2587 8827 1935 6602 1332 4546

1800 36221810S 36221810A 36221815S 36221815A 2911 9932 2177 7429 1499 5115

2000 36222010S 36222010A 36222015S 36222015A 3234 11034 2419 8254 1666 5683

RadiCal™


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Each code includes the radiator of choice, with a hydro block and coupling piece.

2 hydro blocks are available; either straight configuration for pipes coming from the floor or angle configuration for pipes coming from the wall. 2 coupling pieces are available, either 10mm or 15mm to connect the H Block to flow and return pipe.

RadiCal™


Type K1 K2

Height 300 500 600 300 500 600

W/m at 75/65/20 509 833 980 933 1401 1617

n-coefficients 1.32 1.30 1.29 1.30 1.30 1.30

Heated Surface Area (m²/m) 2.09 3.80 4.66 3.51 6.33 7.74

Weight (kg/m) 9.31 16.24 19.70 16.50 27.17 32.50

Water Contents (l/m) 1.89 2.80 3.25 3.70 5.83 6.90


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Simple and efficient installation across the whole system.

25

12"

2x

25

12"

50

25

L

L/2L/2

½“

¾”¾” 50

Front Section Section Front Section

K1 K2 124

100

7351

8361

K1 K2 135

100

84

Radiator on long bracket side

Radiator on shortbracket side

62

9461

K1 front elevation K2 front elevation

K2 - left K2 - rightK1 - right

RadiCal™


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A

L: 1800-2000

L/2

60 85

A

85

L A

400 133500-1100 1331200-1600 267

1800-2000 ** 267 **

** 3rd. lug in radiator centre (half length)

A

L: 400-1600

60 85

A

85

A

L: 1800-2000

L/2

60 85

A

85

L A

400 133500-1100 1331200-1600 267

1800-2000 ** 267 **


A

L: 400-1600

60 85

A

85

RadiCal™

L A

400 117

500-1100 150

L: 400-1600

60

A

85

85

A

K1

L A

400 117

500 – 1100 150

K2

L A

400 133

500 – 1100 133

1200 – 1600 267

1800 – 2000 267**


Radical fixing positions


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RadiCal™

Test conditions: radiator K2, height 600mm, length 1000mm, temperatures 70/55/20°C.

At 8 minutes,with 50% ofnominal flow

At 8 minuteswith nominal

flow

Up to 50% more radiant heat means more comfort - at a lower costThese thermal images demonstrate the improved radiant heat of the Stelrad Radical radiator.

The measurements show that the Stelrad Radical energy saving radiator offers 1.5 times more radiant capacity at 50% of the nominal flow (which offers 90% of the nominal heat output) compared to a traditional radiator.

So depending on the radiator size and type it is compared to, the Stelrad Radical energy saving radiator offers up to 50% more radiant heat.

Supported by a RIBA & CIBSE CPD programme

Stelrad are certified as a member of the RIBA and CIBSE CPD Providers Network. This means we can provide RIBA and CIBSE approved CPD material to architects and other specifiers. An hour-long programme delivered by a member of the Stelrad team delivers information on every aspect of the Stelrad Radical energy saving radiator and its application

Energy savings tested, assessed and declared by KIWAKIWA is a highly respected Pan European institute providing internationally recognized declaration services for systems and products. As an independent expert, KIWA also carries out specialist testing, and the KIWA Gas Technology division has rigorously trialled the Stelrad Radical radiator to assess and declared its energy saving performance

CompatibilityThe Stelrad Radical radiator is compatible with the following:

• Gas boilers

• Electric boilers

• Solar PV

• Ground source heat pumps (GSHP)

• Air source heat pumps (ASHP)

• Biomass installations

cpD

• In a traditional radiator the heat generated consists, on average, of 80% convection heat and 20% radiant heat - limiting the feeling of warmth

• The Stelrad Radical energy saving radiator increases radiant heat by up to 50%

So the comfortable feeling of a room at 20ºC is achieved at a setting of 1 degree less (or even lower).


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RadiCal™

Radical radiator

Standard radiator

A radiator that heats the room, not the wallTraditional radiators are as warm at the back as they are at the front. So valuable energy is wasted, as the heat goes into and through the wall.

The unique and innovative technology of the Stelrad Radical radiator changes all that. The flow connection to the front panel and the return connection into the back ensures that you feel warmer, faster.

And thanks to the higher radiation from the front panel, the back panel is much cooler than with other radiators. So up to 9% less radiant heat is lost through the back of the radiator.

That’s not just good for comfort levels. It also means the heating system is more efficient, which reduces bills - and CO2 emissions.

Fully compatible with renewable energy resources

The Stelrad Radical energy saving radiator is perfectly suited for both solo and multiple heating installations. It can be connected

to a modulating gas or fuel burner and is compatible with all kinds of low temperature systems, such as heat pumps, solar cells and biomass installations.

Faster heating means less CO2 - and lower energy billsHigher radiant heat levels and front panel temperatures combine with other benefits to reduce bills and CO2 emissions.

Heating up fully in less timeThanks to its unique flow pattern, heat up times are dramatically shorter for the Stelrad Radical compared to a traditional radiator.

1. Directed flowHot water is directed into and around the front panel. In a traditional radiator the water flow divides in parallel to front and back panel.

2. Distribution of hot waterHot water rises in one water channel and is distributed equally over the front panel. A unique system then directs it to the back panel where it is spread equally over the back panel water channels.

3. Faster heat upThe front panel of the Stelrad Radical radiator reaches a temperature of 62.5°C after 8.5 minutes. At that time, the front panel of a traditional radiator is at 59.3°C. It only reaches its maximum temperature after 11 minutes, by which time the Stelrad Radical has already been operating at maximum for 2.5 minutes.

Angle H Block

Straight H Block with couplings

Simple and quick to connect with Hydro Block (H Block)

Fast, convenient and flexible fitting

Less heat lost into the wall


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Preset thermostatic valveThe thermostatic valve regulates the water supply in the radiator. This valve is preset in the factory according to the radiator’s size, which guarantees optimum efficiency.

Central connectionThe connection coupling of the Stelrad Radical is located in the middle of the radiator. This means that the location of the connection no longer depends on the length of the radiator, so pipes can be laid down early in the project with no need to know the size of the radiator.

RadiCal™

Simple and quick to connect with Hydro Block (H Block)With the 3⁄4” male thread, the H Block’s central connection means you can connect pipes directly to the Stelrad Radical radiator with additional couplers. This reduces the risk of leaks and improves the installation speed.

The H Block connects the radiator to the flow and return pipe and has a built-in drain off function, valve isolator and a lock shield for ease of installation and servicing.

•TwoHBlockconfigurationsareavailable:with straight connections for pipes coming from the floor or angle connections for pipes coming from the wall.

•TheHBlockpackalsoincludesachoiceofcoupling pieces to connect the H Block to the pipes - either 10mm or 15mm.

Installers should order a completed unit based on the appropriate H Block variation.

Left or right side valve positionThe Stelrad Radical radiator’s valve can be mounted on either the left or right side without having to adjust the supply and return pipes. (K2 only).

Thermostatic head with build-in sensor

Technical data• Setting range 6°C to 28°C (43°F to 82°F)

• Valve stroke limiter

• Setting numbers 1 to 5

• ❄Frost protection 6°C (43°F)

• Max. sensor temperature 50°C (122°F)

• Hysteresis 0.3 K

• Water temperature influence 0.7 K

• Differential pressure influence 0.3 K

• Closing time 24 minutes

Thermostatic label


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RadiCal™

Preset valves - environmentally friendly and energy efficientEvery Stelrad Radical radiator is equipped with a preset valve, which enhances the efficiency of the system and reduces energy consumption.

This valve is preset in order to control the water flow, producing maximum efficiency at optimum temperature - and is an essential element in the Stelrad Radical energy saving design.

You can recognise the setting by the coloured valve closure (yellow, white, red, black or blue). The default setting is matched to the heat output of the radiator at system temperatures of both 70/55/20°C and 55/45/20°C.

4361

5.5

4360

2.5

4360

4.5

4360

6

4360

8

Factory presetting conditions: - heat outputs at 70/55/20ºC (∆t = 15°C ) - pressure drop ∆p = 100mbar

For other system conditions, the valve can be readjusted (or replaced) according to preset tables 4360 and 4361 (using preset key - part of the hardware pack).

In one pipe systems the valve must be fully opened (position 8).

The benefits• No extra adjustment time during

installation

• Optimal water flow in the radiator

• Higher efficiency of the condensing boiler through lower return temperatures

• Environmentally friendly

• Lower energy costs

• Compliance with Rule EnEV for hydraulic balance

Height 300 500 600

Type K1 K2 K1 K2 K1 K2

400 5.5 5.5 5.5 5.5

500 5.5 5.5 5.5 5.5 5.5 2.5

600 5.5 2.5 5.5 2.5

700 5.5 2.5 5.5 2.5

800 5.5 2.5 2.5 2.5

900 2.5 2.5 2.5 2.5

1000 5.5 2.5 2.5 2.5 2.5 4.5

1100 2.5 2.5 4.5

1200 2.5 4.5 2.5 4.5

1400 2.5 4.5 2.5 61600 2.5 2.5 2.5 6 4.5 81800 2.5 6 4.5 82000 2.5 4.5 4.5 8 4.5 8


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Valve re-adjustmentFine tuning valve 4361

RadiCal™

4361

t [K] p [mbar]D D

Q [W ].

100 mbar = 10kPA = 1mWS

Max. 2 K presetting

200

250

300

400

500

600

700

800

900

1000

1200

1400

1600

1800

2000

2200

2400

2600

2800

3000

3200

3400

3600

3800

4000

4800

5300

6500

6800

7200

50 3 5 6 7 8 8

10 100 1 3 4 5 6 7 8 8 8

150 1 1 3 4 6 6 7 7 8 8

50 1 3 3 5 6 7 7 8 8 8

15 100 1 1 1 3 5 5 6 6 7 8 8 8

150 1 1 1 1 3 4 5 6 6 6 7 8 8

50 1 1 1 3 5 6 6 7 7 8 8

20 100 1 1 1 1 3 4 5 5 6 6 7 8 8 8

150 1 1 1 1 3 3 4 5 6 6 7 7 8 8 8

50 1 1 1 1 1 3 3 4 5 6 6 7 7 8 8 8 8

40 100 1 1 1 1 1 3 3 4 5 5 6 6 6 7 7 8 8 8 8 8 8

150 1 1 1 1 1 1 3 3 4 5 6 6 6 6 7 7 7 8 8 8 8

>>>>>>

Example:

- Target: presetting

- Given: - RADICAL radiator: K1, Height 600, Length 700

- factory fitted valve: 4361 - preset:

- at 75/65/20°C - 776 Watt

- ∆t = 10°C (=75-65)

- pressure drop: - ∆p = 100mbar

- selected tuning range: - 2K (see table)

- Solution: presetting according to table 4361: 8

Valve needs to be re-adjusted to setting 8

5.5

5.5 8

4361 4361


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Valve re-adjustmentStandard valve 4360

RadiCal™

>>>>>>

4360

t [K] p [mbar]D D

Q [W ].

100 mbar = 10kPA = 1mWS

Max. 2 K presetting

200

250

300

400

500

600

700

800

900

1000

1200

1400

1600

1800

2000

2200

2400

2600

2800

3000

3200

3400

3600

3800

4000

4800

5300

6500

6800

7200

50 1 1 1 2 2 3 3 3 4 5 5 6 7 8

10 100 1 1 1 1 2 2 2 2 3 3 4 5 5 6 6 7 7 8

150 1 1 1 1 2 2 2 2 3 3 4 4 5 5 6 6 7 7 8 8

50 1 1 1 1 2 2 2 3 3 3 4 5 5 6 6 7 8 8

15 100 1 1 1 1 1 2 2 2 2 3 3 4 4 5 5 6 6 6 7 7 7 8 8

150 1 1 1 1 1 2 2 2 2 3 3 3 4 4 5 5 5 6 6 6 6 7 8

50 1 1 1 1 2 2 2 2 3 3 3 4 5 5 5 6 6 7 7 7 8 8

20 100 1 1 1 1 1 1 2 2 2 2 3 3 3 4 4 5 5 5 5 6 6 6 7 8

150 1 1 1 1 1 1 2 2 2 2 3 3 3 3 4 4 4 4 5 5 5 6 7 8

50 1 1 1 1 1 1 2 2 2 2 2 3 3 3 3 3 4 4 4 5 5 6 7 7 8

40 100 1 1 1 1 1 1 1 2 2 2 2 2 2 2 3 3 3 3 4 4 5 5 6150 1 1 1 1 1 1 1 2 2 2 2 2 2 2 2 3 3 3 4 4 5

Example:

- Target: presetting

- Given: - RADICAL radiator: K2, Height 600, Length 1200

- factory fitted valve: 4360 - preset:

- 60/40/20°C - 997 Watt

- pressure drop: - ∆p = 100mbar

- selected tuning range - 2K (see table)

- SOLUTION: PRESETTING ACCORDING TO TABLE 4360: “ 2 “

4360 4360

“2”4.5

4.5

2.5

4.5

6

8


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Pressure drop diagramFine tuning valve 4361Radiators without connection accessories

Fine presetting

Target:

Given: Q·

= 350 W∆ t = 15 K (65/50 °C)∆pv = 32 mbar

Solution: m· =Q·

=350

= 20 kg/hc˙∆t 1,163 ˙15

1,0 K : 62,0 K : 5

± [%]

Kv-Value[m3/h]

Kv-Value[m3/h]

kvs-Value[m3/h]

1 2 3 4 5 6 7 8

0,05 0,06 0,07 0,08 0,10 0,11 0,12 0,14

0,06 0,06 0,08 0,09 0,11 0,15 0,18 0,26

0,06 0,07 0,08 0,10 0,12 0,17 0,25 0,50

42 42 37 36 35 32 30 10

120 10 4,0 2,7 3,5

p-bandxp1,0 K

p-bandxp2,0 K

30

20

10

5

3

2

1

0,5

0,3

0,2

0,1

300

200

100

50

30

20

10

5

3

2

150030020010050302010532

Fine presetting 1 2 3 7 8654

Flowtolerance

*) With protective cap or actuator 100°C

Setting range

Heat flow

Thermostatic insert

Temperature spreadPressure loss, radiator,with integrated valves

Mass flow rate

At p-band At p-band

Calculation example

Pres

sure

loss

∆p

[kPa

]

Pres

sure

loss

∆p

[mb

ar]

Setting from diagram:

p-band [xp] 2,0 KInformation supplied by Heimeier

Radiator with integrated valveswithout connection fitting

Thermostatic

insert and

thermostatichead

Permissible differential pressureat which the valve still closes∆p [bar]

EMO 1/3EMO EIB/LON

Permissibleoperating

temperature

TB * )

[°C]

Permissibleoperatingpressure

PB[bar]

5.5

RadiCal™


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Pressure drop diagramStandard valve 4360 Radiators without connection accessories

Target: Setting range

QwolftaeH:neviG · = 1135 WTemperature spread ∆t = 15 K (65/50 ° C)Pressure loss,radiator with integrated valves

∆pv = 30 mbar

Solution: Mass flow rate m· = Q

·=

1135= 65 kg/h

c˙∆t 1,163 ˙15

Calculation example

p-band[xp] 2,0 K

Permissible differential pressureat which the valve still closes∆p [bar]

EMO 1/3EMO EIB/LON

Radiator with integrated valveswithoutconnectionfitting

Flowtolerance

± [%]

Kvvalue[m3/h]

Kvvalue[m3/h]

kvsvalue[m3/h]

PresettingThermostatic insert

1 2 3 4 5 6 7 8

Permissibleoperating

temperature

TB * )

[°C]

120

Permissibleoperatingpressure

PB[bar]

10

*) With protective cap or actuator 100 °C.

p-band

p-bandxp2,0 K

30

20

10

5

3

2

1

0,5

0,3

0,2

0,1

300

200

100

50

30

20

10

5

3

2

150030020010050302010532

1 2 3 7 8654Presetting

Pres

sure

loss

∆

p [k

Pa]

Pres

sure

loss

∆p

[mb

ar]

Thermostatic

insert and thermostatic head

Information supplied by Heimeier

RadiCal™

2.5

4.5

6

8


43 www.stelrad.com

Radical mounting template

35-115mm

115-155mm

?

UIN: 9223

Using the mounting template for the bottom connection of Radical radiators offers important advantages during the installation, e.g. leak testing the system without a mounted radiator.

The mounting template replaces the radiator during the installation, which reduces the total installing cost. Finishing tasks such as painting, tiling and applying wallpaper no longer require the removal and remounting of the radiator.

The radiator is mounted after all the finishing work, which guarantees a pristine condition on commissioning.

The mounting template consists of a bridging piece with 2 connections of 3⁄4” external thread on a centre distance of 50mm. As the wall distance depends on the radiator type, the mounting template offers multiple positions according to the available brackets.

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Radical mounting template

XXXXX 3/4||

3/4||

3/4||

For 1⁄2” INT - bottom connection(right, centre or left)

The mounting template can be used for tubes coming from the floor, as well as for tubes coming from the wall.

1

To mount of the template on the wall, the plumbing should have the correct wall distance.

2

Connect the plumbing to the template and conduct the leak test.

3

Once the concrete floor is finished the L-shaped part (and the extension) can be removed in order to paint, tile, to apply wallpaper. ATTENTION: the bridging part must remain on the plumbing to prevent pollution of the tubes.

4

Mount the brackets against the wall and remove the bridging part before the radiator can be installed. Note: Brackets should be mounted before removal of the bridging part, to eliminate any possibility of pollution.

5

ATTENTION: the mountingtemplate has a ¾” ext eurocone thread, for radiators with a ½” INT bottom connection, a ½” EXT x ¾” EXT piece is necessary.

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Radical Hydro Block connections

For ¾” EXT Eurocone bottom connection(centre):

¾"

¾"

58

¾"

¾"

¾"32

26

UIN: 10mm 363000210AUIN: 15mm 363000215A

- angular version- with drain

50

50

50

50

- not included- parts unlock drain function

UIN: 10mm 363000210SUIN: 15mm 363000215S

- straight version- with drain

50

50

- not included- parts unlock drain function

2-pipe connections for bottom connection (¾” EXT Eurocone or ½” INT):

IMAX XTRA30 - 150 kW- Wall hung- Robust and light aluminium silicon alloy

heat exchanger- Up to 110% part load effi ciency- High 5:1 turndown- Low NOx emissions

46

IMAX XTRA30 - 150 kW- Wall hung- Robust and light aluminium silicon alloy

heat exchanger- Up to 110% part load effi ciency- High 5:1 turndown- Low NOx emissions

47 www.stelrad.com

more choice for application flexibilityA range of models provide extra sizing flexibility and covers a multitude of application requirements, including those where there are installation difficulties or where wall space is at a premium.

Tech

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orm

atio

n

teCHniCal infoRmation

many technical features are

constant across the Stelrad

ranges, as outlined here

- apart from the Radical

energy Saving Radiator,

which has its own technical

information pages. each

section’s introduction

page provides you with

any further technical

information specific to the

ranges included.

Example: Exact output at Δ∆t50 = 2000 Btu/hr

Output at Δ∆t30 = 2000 x 0.515 = 1030 Btu/hr

°C °F ∆t Operating Factor ∆t Operating Factor

5 0.050 10 0.057

10 0.123 20 0.142

15 0.209 30 0.240

20 0.304 40 0.348

25 0.406 50 0.466

30 0.515 60 0.590

35 0.629 70 0.721

40 0.748 80 0.858

45 0.872 90 1.000

50 1.000 100 1.147

55 1.132 110 1.298

60 1.267 120 1.454

65 1.406 130 1.613

70 1.549 150 1.776

75 1.694 - -

extra performance to guaranteed standardsStelrad combine the most sophisticated production resources in Europe with substantial investment in testing and verification of performance data - which has helped us create high output radiators delivering heating performance that exceeds expectation.

Superb quality from design to installationOur radiators are specifically designed to minimise any movement, providing a tight, professional fit, that will remain in place, even after storage, transit and installation. Convectors are precision welded directly onto the waterways for greater efficiency and economy,

with flexible connection options for the highest of commercial and domestic application specifications.

Stelrad radiators are manufactured under ISO 9001 quality systems i

Documents

Stelrad Radiator Specification · 2020. 2. 4. · technical guide Stelrad Radiator Specification StelradTecSpec_LEE.indd 1 08/09/2014 14:01. Supporting your system design through