... steady performance, lower voice, lower maintenance cost etc.1. Monobloc water heater heat pump, heating capacity 11000~18000BTU, COP is ... per hour, power consumption is under 1/4 compared with electric water heater .2. Split water heater heat pump, heating capacity from ... top discharge is optional, power consumption is 1/4 compared with electric water heater.3. Multi-functional type: split heat ...