Choosing the Right One

Step 1.

CHOOSE THE RIGHT PRODUCT FOR YOUR CLIMATE ZONE.

ENERGY STAR qualified windows and patio doors sold in Canada meet precise energy efficiency criteria for at least one of our four climate zones: A, B, C or D. Québec covers three of them: B, C and D.

WHICH ZONE DO YOU LIVE IN?

Find out which zone your municipality is in.

City	Climate zone
Drummondville	B
Granby	B
Maniwaki	B
Mont-Joli	B
Montréal	B
Québec	B
Rimouski	B
Sherbrooke	B
Thetford Mines	B
Trois-Rivières	B
Bagotville	C
Baie-Comeau	C
Gaspé	C
Natashquan	C
Roberval	C
Sainte-Anne-des-Monts	C
Sept-Îles	C
Val-d'Or	C
Inukjuak	D
Kuujjuaq	D
Nitchequon	D
Schefferville	D

Step 2.

CHECK THE LABEL OR MANUFACTURER'S LITERATURE TO FIND OUT WHICH CLIMATE ZONES A PRODUCT IS QUALIFIED FOR.

Here's a sample label for a product qualified for zones A, B and C.

Step 3.

DETERMINE THE ENERGY RATING (ER) YOU NEED.

When you buy a window or patio door qualified for the zone you live in, you are selecting a product with superior energy performance. Windows and patio doors that display the ENERGY STAR symbol have an ER value that will help you comparison shop.

The more zones a product qualifies for, the more energy-efficient it is. If the product is qualified for a zone that is colder than where you live, you'll save even more on your heating costs.

The table below lists the minimum ER values for zones B, C and D.

CLIMATE ZONE	MOST OPERABLE WINDOWS AND PATIO DOORS
B	25
C	29
D	34

For more technical details about ERs or to find out the ER of a particular ENERGY STAR qualified product, see "Information for General Consumers" on the
ENERGY STAR Canada site.

Step 4.

OPTIMIZE INSTALLATION.

Have windows and patio doors installed by a specialist to prevent heat loss and air infiltration around the frames. Some retailers offer installation services. Ask!