An air source heat pump is basically a modified version of an air conditioning unit in which the cooling air is circulated into a different room or area in order to utilize the natural exchange of heat between air and the cooled surface. An air source heat pump uses the air present in the air ducts as a constant heat source in either heating mode or in cooling mode with the same compressor and air-flow similar to that of a central air conditioning system. In this way, the air is heated to an appropriate temperature for use as needed....
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