... Salons,swimming pools,etc. 3.Outlet water temp. 50~70C Direct Heating Air Source Swimming Pool Heater Brief introduction: Air source ... 't need a person to take care of it.4. World famous heat pump compressor;5. Suitable Places: hot water supply ... pool, factory , farm, etc.6. Heating capacity: 18kw,35kw,70kw. Direct Heating Air Source Swimming Pool Heater