After our cars and our homes, our heating and cooling systems are the most expensive thing most of us own. Yet, unlike our cars, we don’t think about it until it breaks. It’s in a closet, or the basement, quietly working to keep us comfortable, and as long as that is true, we ignore i
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During cold weather, take advantage of the sun's warmth by keeping drapes open on south facing windows during daylight hours. To keep out the heat of the summer sun, close window shades and drapes in warm weather. Glass windows without shading allow between 75-80 percent of transmitted solar energy through, where vertical or venetian blinds allow 0-5 percent.
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