Recessed Pocket Wall Unit; Voltage Rating 120 Volt at 60 Hertz; Number of Phases 1; Heating Capacity 2000 to 6000 BTU/HR; Length 17-1/8"; Height 19-1/2"; Material High Grade Zinc Coated Steel; Finish Neutral Color Baked Enamel; Heating Element Smooth Aluminum Plate Fin Copper Tube; Control Type Max-Off-Min, Fan Switches; Approval UL, CSA, BSIRA, RTS; Depth 3-1/2"; Water Connection 1/2" Soldered; Includes Coil, Fan and Motor Assembly, Heat Exchanger, Max-Off-Min and Fan Switch Controls, Water Vent with Wide Convenient Screwdriver Slot; Application Foyers, Hallways, Family Rooms, Finished Basements and Even for Taking the Chill Off of a Garage; Warranty 5 Year