199,000 Btu Non-Condensing Natural Gas Tankless Water Heater 81%

199,000 BTU Non-Condensing Natural Gas Tankless Water Heater, Volts: 120, Hertz: 60, Phase: 1, Afue: 81, Gas Inlet: 3/4", Cold Inlet: 3/4", Hot Water Outlet: 3/4", Hot Water Flow Rate: 7.4 Gpm, Installation Type: Only Outdoor Wall Hung, Heat Exchanger: Stainless Steel, Casing: Cold Rolled Carbon Steel, Dims: 23"H X 14"W X 9.3"D, Weight: 60 Lbs Includes: Installation & Operation Manuals, Tapping Screws & Anchors, Front Cover Caps, Remote Controller (Nr-21Du)