Heat pump by the type of low temperature heat source can be divided into air source heat pump, water source heat pump, buried pipe ground source heat pump.
1 Air source heat pump uses air as a low temperature heat source to draw heat from the surrounding air. According to its low temperature side and high temperature side of the heat transfer medium used, there are air-air heat pump and air-water heat pump.
2 water source heat pump uses water as a low temperature heat source, draw heat from the water. According to different water sources, is divided into groundwater, surface water (river, lake, river, sea), life and industrial waste heat pump. By endothermic heat and heating medium, the type of water - air heat pump and water - water heat pump.
3 buried pipe ground source heat pump (also known as ground-source heat pump, ground-coupled heat pump) using low-temperature heat in the soil through the buried pipe from the soil to extract heat or heat. By endothermic heat and heating medium, the type of water - air heat pump and water - water heat pump.
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