... low temperature *Heating,cooling,doemstic water *CE,RoHS Heat Pump Air to WaterAir to Water Heat Pump for DHW and air-conditioner, ... ideal replacement for water heater and air-conditioner.2. Use Environment-friendly refrigerant;3. Use bigger heat exchanger than normal ... in hard conditions7. SWEP stainless steel plate heat exchanger, 100% stainless water circuit8. Wide range temperature running from - ...