Tuesday, December 2, 2008

Kudos To The Energy Star Program

It is pretty clear that the Department of Energy is planning for a sound future as far as the window industry is concerned. If you haven't seen the proposed Energy Star Standards for windows in the years to come, it's worth a look. Energy Star is really going to mean something!

Right now it's hard to find a window that doesn't have the Energy Star sticker on it. In Zone 5, where I happen to live, there are windows on the market that are 2 and 3 times more energy efficient than other windows. The public should reasonably expect that one would have a higher ranking than the other. If you understand the NFRC label there is a huge difference. If you look for the Energy Star label it's virtually worthless.

U-factor, from the NFRC label is very meaningful to those of us in the north. It is the measure of heat transfer or loss. When temperatures can hit 30 degrees below zero it matters. You want to know what you're getting. If the average consumer looks at the Energy Star label on a window they believe it is an energy efficient window. Guess what? It might be better than what you have but it might not be that big of an upgrade in terms of energy efficiency.

Starting in 2009 the u-factor has to be .30 to .32 (the lower the better). There are already a few windows on the market with a u-factor rating of .16 to .20. In 2015 the standard lowers to .20 for a minimum.

The DOE is making the Energy Star label making mean something in the future. One of the windows on the market today offers a 33% fuel saving pledge. Their u-factor gets as low as .16 while Energy Star labels it the same as windows that are less than half as energy efficient. With the new Energy Star Standards maybe the general public won't need a 33% fuel savings pledge to see who really has an energy efficient window.

I know they had good intentions from the beginning. Separating the men from the boys will make the Energy Star logo mean something on windows. They are consciously making an effort to reduce the number of windows that meet their standards to less than 25% of the windows on the market. Kudos to the DOE.

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