By now, you know that space conditioning—heating or cooling living areas—accounts for about half of your household energy costs. Insulating and weatherproofing will help you control the indoor climate, but you still have to decide how to provide heat and cooling.
One method of heating that has become popular in recent years is radiant in-floor heat. It involves either wire mesh that converts electricity into heat, or flexible tubing through which hot water is circulated. Both versions provide easy, invisible comfort. They have different requirements, though, so consider the details carefully before you decide which to use.
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