Water Source Heat Pumps 101
What is a water source heat pump? While referred to as heat pump, the water source system provides both heat and air conditioning to a home, with both enclosed in the same casing. Driving its refrigerant cycle (reversible from heat to air as needed) are a tube-in-tube heat exchange mechanism, a heat / cool coil, a compressor, a fan, and reversing controls and valve. How does a water source heat pump differ from a standard system? In choosing a heat pump system for your home, you have two options: air-to-air, or geothermal. Air-to-air – The standard heat pump option, this process transfers heat between your house and the outside air. Geothermal – A heating unit that gathers heat for the home from either the ground (ground source) or a nearby body of water (water source.) Why Geothermal? Despite the higher heat pump installation cost, the advantages to choosing a ground source or water source heat pump, over an air-to-air system are numerous: Ongoing costs are lower because ground or water temperatures remain relatively constant. Energy use is reduced by as much as 60 percent, over air-to-air heat-pump options Humidity is considerably reduced Less complicated, smaller units, water source and ground source...
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