... products is air source and geothermal heat pump for water heater / heating & swimming pool, include Monobloc and Split style. Our heat ... voice, lower maintenance cost etc.1. Monobloc water heater heat pump, heating capacity 11000~18000BTU, COP is above 4.2, water ... under 1/4 compared with electric water heater .2. Split water heater heat pump, heating capacity from 13000BTU--180000BTU, COP is above ...