Actual homeowner savings will depend on local climate, individual home characteristics, and local utility rates.Ĭonsumers who already have clear glass storm windows over their single pane windows and replace the storms with ENERGY STAR certified (low-e) storm windows can save an additional $50 per year on heating and cooling (about 2%) on a national average.Įarning the ENERGY STAR label means products meet strict energy efficiency guidelines set by the U.S. These estimates are conservative and do not include savings from reducing air leaks from older windows, which provides additional savings but can vary substantially from house to house. ![]() Consumers can expect to pay back the incremental cost of the ENERGY STAR certified storm windows in about three (3) years. ![]() EPA estimates that on a national average, ENERGY STAR certified (low-e) storm windows can save homeowners $350 on their annual heating and cooling bills (about 10%) when installed over single-pane clear glass windows (without existing storm windows).
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