"For the first time, the DOE guidelines for Energy Star criteria will recognize the benefits of passive solar heat when the criteria takes effect Aug. 29, 2003," said Stephen Weidner, vice president of sales and marketing for Pilkington Building Products North America. "The criteria for each of the four zones recognize the unique cooling and heating days ratio of each region. The announcement will not only benefit Pilkington and other pyrolytic low-E suppliers, but it also enables many window manufacturers to offer an Energy Star window."
The cost- and time-saving benefits of processing pyrolytic windows have long been established. However, traditionally, the passive solar heat benefits of these windows have not been widely accepted.
"For the northern zones, there is significant benefit to using a window with a high passive solar heat rating," Weidner added. "In northern climates, where the weather is colder, Pilkington Energy Advantage(r) Low-E has the best overall performance of any low-E glass. By taking advantage of free passive solar energy, homeowners will reduce their winter heating costs, and reduce the use of natural resources."