Why Passive solar window box heaters - can reduce your heating costs
Solar Passive Indoor Window Box Heaters can reduce the amount you spend on oil and natural gas by using solar energy. The passive solar heating units sit on any indoor window sill, to heat any room in th ehouse. Solar Window box heaters heat to about 96F. Using small solar fans, the hot air is pushed back into your room. No electricity or hookup required. Dave AllSun Solar Products www.allsunsolarproducts.com
