DIY Video : How to build a Homemade Heat Pump Water Heater from an Old Air Conditioner and refrigerator parts


    This video series shows the build of a heat pump water heater which is used for heating potable hot water. It’s based on parts from a 10,000BTU air conditioner, and various parts from the hardware store and refrigeration parts store. It provides about 3kW of heating capacity at 20C ambient temperature.It works by circulating water from the water tank inside to this outside unit using pipes.The savings are quite good, about 50c per day for heat pump water heating, compared to 90c per day for gas water heating, and that’s with the currently-cheap gas rates, which will shoot back up when the economy turns around.

    Watch the DIY Heat Pump Water Heater Build Videos