I can't tell you how a heat pump--air to air--works. But a geothermal system works by compressing the air after transfer the heat from the underground/underwater liquid. The compression is what raises the air temp to something over 100 degrees. That get blown through the house. BTW If you use a well system or underground loop system the cost of a geothermal system should be the cost of a conventional forced air system plus the cost of the wells or the cost of the loops. I had to argue with the heating company but they finally saw my point. My wells were $2000 each and that's exactly how it worked out.
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Today's Featured Article - Usin Your Implements: Bucket Loader - by Curtis Von Fange. Introduction: Dad was raised during the depression years of the thirties. As a kid he worked part time on a farm in Kansas doing many of the manual chores. Some of the more successful farmers of that day had a new time saving device called a tractor. It increased the farm productivity and, in general, made life easier because more work could be done with this 'mechanical beast'. My dad dreamed that some day he would have his own tractor with every implement he could get. When he rea
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