40 Gallon, 35,000 BTU's, Natural Gas, Mobile Home Water Heater With Diverter, Conversion To LP Shipped Natural Gas Ready, 2" Installation, 6 Year Limited Tank & Parts Warranty, First Hour Rating 65, 36.34 GPH At 90 Degree Rise, For Installations From Sea Level To 10,100', R-Value 16, EF Rating .62, Draft Diverter Outlet Size 3", Factory Installed T & P Valve, Piezo Igniter Allows For Easy 1 Hand Pilot Ignition Without Matches, Environmentally Friendly Non-CFC Foam Insulation, Factory Installed Pex Polymer Lined Heat Traps, Meets Had Requirements For Manufactured Housing, Not For Use In Inside Closets Where A Direct Vent Design Is Required, Should Not Be Installed In Outside Closets Of Mobile Homes Located In Cold Climate Areas Since The Water Lines & Tank Must Be Protected From Freezing, Side Plumbing, Unit Dimensions 61.50"H x 20"D.