... to 10 meter •Multi modes : E-heater,economic , vocation,auto.•Close refrigerant circuit ,easy for plumber installation •CE intertek approval ... •Multi protection:PT valve ,double high water tem protection swiches (manual$automatic)•No contamination potential ,the ... for automatic defrosting SpecificationFlexible duct installation Midea Heat Pump Water Heater Combo type R134a-190L