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NW Washington | If you have a hot air furnace in your house you might consider one of several outside burners that keep the dirt and smoke outside an just enjoy the heat inside. They heat water which is then circulated through a heat exchanger in your furnace plenum. Here is one of them and there are several others. http://www.centralboiler.com/products.php
Edited by JohnW 8/1/2014 19:13
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