Country Lore: Passive Solar Heat Savings

On a sunny day, dark screening over a window can supply passive solar heat to a room.
By Mary Limbo
December 2010/January 2011
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Capturing passive solar heat helped one South Dakota homeowner save a little money. 
ILLUSTRATION: GLOPPHY/FOTOLIA


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I have been inspired to make a small step toward capturing and using passive solar heat. Utilizing two south-facing windows in the bedroom and laundry room where the light won’t be missed, I tacked up dark window screening and then nailed a piece of dark paneling to the window frame. I left a small opening at the top and the bottom to encourage airflow.

The thermometer at the top now shows 80- to 90-degree Fahrenheit air coming out, helping to heat the room while saving a few Btus.

Mary Limbo
Hot Springs, South Dakota 


For other approaches to tapping this kind of solar heat potential, see MOTHER’s Solar Air Heater and Build a Simple Solar Heater.MOTHER EARTH NEWS








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