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Windows: Use & Care
Energy-Efficient Windows: The Basics
Our Buyer’s Guide helps you understand how energy efficient windows work including the terms and definitions you need to know. When replacing older windows, we strongly recommended that you upgrade to double-paned glass. Other features to consider: gas filling, low-e coating and window systems with combined low U-factors (0.35 or less for California’s climate) and low solar heat gain coefficients (0.3 or less for California).
Use & Care
Clean = Energy Efficient
Windows with no major damage—such as rotting wood frames or broken glass— generally need little upkeep to maintain their efficiency. Regular cleaning is, however, important. Don’t forget to clean all seals and gaskets and replace them if they have dried out.
Tilt Windows = Easy Cleaning
Windows with surfaces that tilt open make cleaning the outside pane easy. We highly recommend this option if you are installing new windows or sash replacements.
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This program is funded by California utility customers and administered by Southern California Edison under the auspices of the California Public Utilities Commission.