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Harnessing Passive Heating With Your Windows

If you are looking to renovate your home, consider incorporating large, south-facing windows. In doing so, you are harnessing solar power in your home. This is known as passive solar design, which uses the sun’s energy effectively without the aid of panels or other mechanical systems. In addition to windows, other building elements like walls and floors can help boost the efficient use of the sun’s heat.

Passive heating using windows

Window Placement

The placement of your home’s windows plays a crucial role in achieving passive heating for your home. Living in a warmer climate means the largest windows are reserved for the north-facing part of the house to reduce heat gain during summer while letting sunlight indoors.

Conversely, large windows should be placed on the south-facing side so they can draw heat during the winter months. When the summer comes, shading in the form of awnings or trees prevents certain rooms from becoming saunas.

The Best Windows for Passive Heating

Proper window orientation shouldn’t be the only thing to consider when considering passive solar design. You should also take the window features into account. For south-facing windows, for instance, choose those with low emissivity (low-E) glass coatings. Plus, make sure they have the appropriate solar heat gain coefficient (SGHC) and U-factor ratings suitable for your local area.

To help you make the right selection, get in touch with the experts at Renewal by Andersen® of St. Louis. We offer a wide array of high-quality replacement windows and doors, each one backed with an outstanding warranty. We can provide homeowners with a variety of options when it comes to the size, style and design of their new windows.

Call (314) 983-9977, or fill out our contact form to schedule a free consultation. We serve Missouri homeowners, including those in Chesterfield and the surrounding communities.

Reviews

"Have nothing but great things to say about the window installation done today by John Hutchinson with Renewal by Andersen! He was friendly, personable and professional and did a great job installing. He did a great job of putting down roller pads and tarps with next to zero clean up. Would highly recommend them for any window replacement needed!"

Mark V.
Jun 26, 2025

"We had our new Renewal by Andersen windows installed on June 5th & 6th, 2025 and we LOVE them! The quality, beauty, and functionality are best-in-class! The whole experience from dinner presentation at Lazy River Grill, the initial in-home sales consultation and measurement, the regular communications from the salesman and concierge, and the installation team’s professionalism and skills made the process so seamless. This is the second home we have opted for Renewal windows and doors and have been delighted both times! Thank you Renewal by Andersen STL! "

Jeff C.
Jun 7, 2025

"I had an excellent experience with RbA STL. Our designer, Courtney, was great and the finished product is awesome. The installation was easy and the gentlemen left our home cleaner than they found it upon entering. I would recommend RbA STL - you’ll get tired from their constant contacts, and that’s a GOOD thing!"

Jeramy D
Jun 3, 2025

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