水源热泵区别于地源热泵的就是源水侧水源直接取自地下水或者江水或者海水等，它是一种开式的型式，水被直接拿来取热或排热并按要求排放回原取水点，只是利用了自然界水中的能量，这样的形式就称为水源热泵了。
What distinguishes the water source heat pump from the ground source heat pump is that the water source on the source water side is directly from groundwater, river water or sea water. It is an open type. The water is directly used to take heat or discharge heat and discharged back to the original water intake point as required, but it only uses the energy of natural water. This form is called water source heat pump.