A heat pump water heater works on principle just like an air conditioner or like a refrigerator. Wall Mounted Heat Pumps, Wall Mounted Water Heater, Wall Mounted Hot Water Heater.A heat pump water heater works on principle just like an air conditioner or like a refrigerator. It absorbs warmth from the air and transfers it to heated water. Hence, it’s also referred to as air-source heat pumps. It operates on electricity but is more efficient than a conventional electric water heater.With a focus on energy efficiency and sustainability, we provide innovative solutions to meet the growing demand