Welcome To: Residential Energy Efficiency

Welcome To:RESIDENTIAL ENERGY

EFFICIENCY

Garry Ruliffson

Energy Solution SpecialistOPPD

The Energy Efficient HomeUnderstanding a Home as a System

Energy Trends

Performance Test

• Infrared Imaging

Performance Test

1. Windows

Typically, What is the first options we choose for making homes more

Energy Efficient?

Long term Payback

1 or 2. High Efficient Heating

High Efficient Fossil Fuel

High Efficient Heat Pumps

1, 2, or 3. Add Insulation

So, Where Do We Start?

Wind & Stack Effect Pressure

Stack Effect

Mechanical Infiltration

Exhaust 200 to 230 CFM

Exhaust up to 150 CFM

Exhaust 50 to 110 CFM

The Air Barrier

Exterior Wind Air Barrier Interior Air

Barrier

Stack Effect Pressure

The Thermal Barrier

Typical Basements are Energy WastersAn energy assessment ofyour home’s Basement

Insulation Uninsulated basements can

make up almost 40% of your homes heating load requirements

Adding minimum insulation (R-10) cuts basement heating loads in half

Basement Wall Insulation

Extruded Foams

Wall Insulation Types Blow-In Insulation Systems

Spray FoamTypical Installation

Attic Insulation TypesLoose-Fill

Cellulose

Ventilating Homes for PEOPLE

Pulling in Straight Unconditioned Air

Air-Cycler

Energy Recovery Ventilator (ERV)

Ductwork - AtticOutside Conditioned Space

Furnace offFurnace on

Red is Bad – hot air leaking out

Fossil Fuel Furnace Efficiencies

AFUE 60% - 80% - 90% - 97%

How a Heat Pump Works

The Home System

In the Future, There Will Be a Demand for High Performance Homes!

Questions??