Water source heat pump could theoretically use all the water, in fact, the actual project, the cost of different water use differences are considerable. So in different areas of suitable water source heat pump water into a key. The current use patterns in the water source heat pump, closed systems are generally expensive. The open system, able to find suitable water source heat pump used to be restrictions. Off systems, water requirements must be met certain temperature, water and cleanliness.
Recharge for the use of pumping from the ground, must take into account the geological structure of land use, to ensure that the economic conditions, drilling to find a suitable water source, and should also take into account the local geology and soil conditions, ensure the tail water after use recharge can be achieved.
Due to different regions, different users and the national energy policy, fuel prices, the basic conditions of different water sources; time investment and operating costs will vary with different users. Although general, the higher operating efficiency water source heat pump, low cost. But with the traditional method of heating air conditioning compared to the different needs in different regions under the conditions of investment in water source heat pump economy will be different.