With expansion valve configured heat pump water heaters

* Hydropower complete isolation, users more secure, more at ease * Host small size, easy installation, the tank can be flexible with, meet customer requirements * unit with built-in heat exchanger, the water tank no brass, just between the host and the tank water connection, forced heat transfer between the medium and the water, the higher heat transfer efficiency group, better stability and longer life * Microcomputer controller, the user can * be combined with solar energy according to the requirements set free, cost more provinces, make up the solar rainy days without hot water, to ensure the normal use of hot water