Window Energy Ratings Canada

But choosing highly efficient models can help.

Window energy ratings canada.

To earn the energy star label in canada a window must have a minimum energy rating of 25 in zone 1 29 in zone 2 and 34 in zone 3. The standards for energy ratings vary according to climate zone. The lower the u value the greater a window s resistance to heat flow and the better its insulating value. Different climate zones have different energy ratings.

The window s insulating value is indicated by the r value which is the inverse of the u value. In canada the energy performance of windows doors and skylights is tested using the canadian standards association csa a440 2 standard. In canada s climate this means higher energy bills for you. U factor ratings for windows generally fall between 0 20 and 1 20.

The national fenestration rating council nfrc operates a voluntary program that tests certifies and labels windows doors and skylights based on their energy performance ratings. Rating for energy performance. In canada for a window to earn an energy start label its minimum energy rating in zone 1 should be 25 29 in zone and 34 in zone 3. Replacing all of your windows with energy star certified models can save you an average of 45 on your energy bill while a new energy star certified door is 25 more energy efficient than a standard door.

Each year the average american household spends 1 500 2 500 on energy bills. Replacing windows or buying those that are energy efficient can be quite frustrating. To learn more about energy star criteria for windows doors and skylights in canada visit energy star canada nrcan administers and promotes energy star in canada. The energy star most efficient 2020 designation recognizes the most efficient products among those that qualify for the energy star program.

It encompasses u factor air leakage and shgc giving consumers a more convenient way to compare products. Energy star most efficient 2020 fixed or picture windows. 45 of that cost is for heating and cooling. Choosing high performance windows doors and skylights can save you money and keep your home comfortable.

The lower the number the better an insulator the window or door is. The other three are somewhat less important to energy performance according to energy star but can help you judge how well a window or door will perform in a particular application for example whether it ll let in enough light.