Blow Heaters

2017.11.27

Blow Heaters

GP14 /40 /70 /95

Technical info

2 Technical info

Blow Heaters

1 Product Description

SKOV A/S supplies direct-fired blow heaters as a supplement to or as a replacement for water-based

indirect-fired heating systems.

Direct-fired means that the generation of heat takes place as a result of direct, open combustion of gas

in the house section itself.

Please note that some countries prohibit heating of livestock houses by means of direct-fired blow

heaters and that some countries require special approvals of the various types of burners. Blow heaters

included in the SKOV A/S product range are not to be sold in North America due to lacking UL

approval.

Heat rating Product Type

14 kW

GP 14 kW, NG

GP 14 kW, LPG

40 kW

GP 40 kW, NG

GP 40 kW, LPG

70 kW

GP 70 kW, LPG

GP 70 kW, NG

95 kW

GP 95 kW, LPG

GP 95 kW, NG

Table 1: Lists the variants of blow heaters used by SKOV A/S.

All sizes of blow heaters are available in two variants - natural gas fired and LPG/Propane fired.

• The blow heaters are designed specifically for application in livestock houses.

• Each blow heater is equipped with an independent controller - BCU (Burner Control Unit).

• The BCU controls and monitors that the burner works correctly as regards safety and output.

• An adjustment procedure as well as an individual test of the blow heaters has been carried out

by the manufacturer.

• The on/off heating function incorporated in the blow heaters is controlled by the DOL climate

computers from SKOV A/S.

• Comes with connection kit for natural gas or LPG/Propane gas.

• The gas grid, pipes, controller and storage tanks are not supplied by SKOV A/S.

• Blow heaters can be used as on/off air circulators, when heating is not required.

Technical info 3

Blow Heaters

1.1 Method of Operation

The blow heaters circulate the housing air by means of the built-in fans.

A signal is transmitted from the DOL climate computer from SKOV to the blow heaters to

make them switch on; the climate computer cuts off the signal when the heat requirement has

been covered.

Direct-fired blow heaters cause emission of waste products generated in the combustion

process into the housing air of the livestock house. This brings about a need for higher

minimum ventilation and a higher fuel consumption compared to waterborne heating.

Figure 1: The figure illustrates the application of blow heaters and air circulators in broiler houses. The

blow heaters are suspended from the ceiling below the air inlets and thus heat up the incoming

air.

Blow heater

Air circulator

4 Technical info

Blow Heaters

2 Product Survey

Blow heater

All blow heaters come with a standard suspension kit including 0.8m chain per suspension

point, hook and snap hooks. Each unit has 2, 3 or 4 suspension points respectively.

410138 Blow heater GP 14 kW, NG, 230V 50 Hz

410139 Blow heater GP 14 kW, LPG 230V 50 Hz

Applies to both:

Range of air jet: 10 m

Weight: 13.0 kg

Gas connection: ½” sleeve



Applies to both:


Weight: 26.8 kg

Gas connection: ½” sleeve



Applies to both:


Weight: 26.8 kg

Gas connection: ¾” nipple



Applies to both:


Weight: 38.4 kg

Gas connection: ¾” nipple

Technical info 5

Blow Heaters

Accessories for blow heater

410156 Connection kit blow heater ¾” 1.5m

Connection kit for GP70 and GP95, natural gas

Including ball plug valve ¾” sleeve

410157 Connection kit blow heater ½” 1.5m

Connection kit for GP14 to GP40, natural gas

Including ball plug valve ½” sleeve

410158 Connection kit blow heater LPG 1.5m

Connection kit for GP14/40/70/95 LPG

Complete as illustrated including controller. Supply

pressure to the controller must be between 0.53 and

1.9 bar.

A 6mm hose connection is required on the supply.

For supply of LPC/Propane.

This connection kit is able to regulate the pressure

on the gas grid down to the maximum permissible

supply pressure.

Order one set per blow heater.

410159 Suspension set incl. hoist for blow heater

Contains fixing rail and mounting set.


410161 Suspension set for blow heater

Contains fixing rail and mounting set.


530302 Loctite liquid packing, gas 577 50 ml

All-purpose liquid packing.

Well suited for mounting in places of low

temperatures, e.g. outdoors.

DVGW approved (EN 751-1)

WRC approved (BS 6920): 0711506

Max. pipe dimension: 3"

Disassembling, resistance to fracture: Medium

Application: -50°C - +150°C

Consumption amounts to one bottle / 20 blow

heaters.

6 Technical info

Blow Heaters

Air circulator

445044 DB 465 air circulator 230V 50Hz stepless


Is primarily used for air circulation.

Air circulator which can contribute to reduce

temperature difference.

Can be adjusted steplessly for example using DOL 31.


Is primarily used for air circulation.

Air circulator which can contribute to reduce

temperature difference.

Can be adjusted steplessly for example using DOL 31.

Accessories for air circulator

445047 Suspension parts for air circul, fixed

Is used for suspension of the above air circulators in

the ceiling.

Cannot be adjusted in height.

445048 Suspension parts for air circ., hoist

Is used for suspension of the above air circulators in

the ceiling.

Can be adjusted in height to facilitate positioning and

service.

Technical info 7

Blow Heaters

3 Technical Data

Article no. 410138 410130 410133 410135 410139 410131 410132 410134

Type GP 14 kW, NG

GP 40 kW, NG

GP 70 kW, NG

GP 95 kW, NG

GP 14 kW, LPG

GP 40 kW, LPG

GP 70 kW, LPG

GP 95 kW, LPG

Electrical Setup

Voltage [V]

230 230 230 230 230 230 230 230

Frequency [Hz]

50 50 50 50 50 50 50 50

Power consumption [A]

0.5 1.1 2.0 2.9 0.5 1.1 2.0 2.9

24 V DC signal [mA]

15 15 15 15 15 15 15 15

Gas

Gas Natural gas LPG / Propane

Supply pressure [mbar]

20-25 37-50

Effect [kW]

14 40 70 95 14 40 70 95

Nozzle: Number of holes / Hole size [mm]

1 / 3.3 12 / 1.8 12 / 2.3 12 / 2.7 1 / 1.9 6 / 1.6 6 / 1.9 12 / 1.7

Consumption Natural gas LOW [m³/h]

1.5 3.9 6.8 9.2

Consumption Natural gas HIGH [m³/h]

1.5 3.3 5.7 7.8

Consumption LPG/Propane [kg/h]

1.1 2.9 5.0 6.8

Connection kit 410157 410156 410158

Connection type ½” internal thread ¾” external thread 6mm hose connection

Mechanics

Output [m3/h]

1,200 3,900 4,500 6,500 1,200 3,900 4,500 6,500

Distance Min.- Max. [m]

5-10 20-40 25-50 20-40 5-10 20-40 25-50 20-40

Max distance without air circulator [m]

7 30 35 30 7 30 35 30

Max distance with air circulator [m]

10 40 50 40 10 40 50 40

Net weight [kg]

13.0 26.8 38.4 13.0 26.8 38.4

Gross weight [kg]

13.0 32.1 57.0 13.0 32.1 57.0

Length [mm]

600 1200 1150 600 1200 1150

Width [mm]

406 540 580 406 540 580

Height [mm]

470 442 520 470 442 520

* Note: When using 410158 Connection kit blow heater LPG 1.5m with LPG/Propane, the supply

pressure to the regulator must be between 0.53 and 1.9 bar.

SKOV A/S • Hedelund 4 • Glyngøre • DK-7870 Roslev Tel. +45 72 17 55 55 • Fax +45 72 17 59 59 • www.skov.com • E-mail: [email protected]

201

7.1

2.0

4 •

7.3

• E

N •

Made in D

enm

ark

mailto:[email protected]

Documents

Blow Heaters