Subsidies for WSHP/GSHP Boost Sales in China

In the middle of 1990s, well watersource heap pump (WSHP) and ground-source heat pump (GSHP) systems began to appear in China. At the end of 1990s, sewage water-source heat pump systems began to be used. By 1999, about 100 WSHP/GSHP systems were in operation.