... pump, air source, water heater 2. Restaurant,hotel, villas, etc. 3.high efficiency, enviroment friendly 4.R407C,R134a RWC series ... air source heat pump water heaterBrief introductionAir source heat pump water heater is ... care of .4. World famous heat pump compressor;5. Suitable Places: hot water supply ... Heating capacity: 18kw,35kw,70kw. RWC series air source heat pump water heater