One of the least thought-of items that causes excess energy consumption is a poorly designed and installed duct system. The consumer’s guide from the Energy Department’s Office of Energy Efficiency and Renewable Energy (EERE) says that unsealed ducts in attics and crawl spaces lose air and uninsulated ducts lose heat. Both waste energy and money. The solution is to get a professional to check your house for air leaks. But if plopping down several hundred dollars to find some air leaks doesn’t sound like a fun way to save money on heating, you can accomplish roughly the same results with a little time and a box of incense sticks. Light an incense stick and walk through the house, moving the stick near spots where the walls meet your floors, windows, doors and the ceiling, preferably on a windy day.
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