1.cooling heating,hot water 2.EVI scroll compressor 3.COP 2.7 at -20c 4.seperated tank for option New ... installed in the are where the temperature drops to -20c,(COP can reach to 2.7) it can save your heating ... ,updated inverter compressor,electronic expansion valve and sofware makes the COP a great increaseSome specification for your reference InstallationSperated Tank 200L ...