Geyser-R Heat Pump Water Heater Saves 50%-65% on the costs of running an electric water heater. Best value: The same Heat Pump savings but lowest price and lowest shipping & installation cost Designed to be installed with existing electric water heaters (for other tanks see Geyser RO) Can be disconnected and reinstalled with a different tank, in case you move or change tanks. For more information and installation video, see our company website!