74 Gallon, Natural Gas Water Heater, Short, 75,100 BTU's, 81 GPH, 4" Draft Hood, 1" Insulation, Certified For Installations From Sea Level Up To 7,700' Elevation, UEF: 0.60, Recovery At A 90 Degree Rise-Gallons/Hours 81, R-Value 8.00, Factory Installed T & P Valve, Unit Dimensions: 61"H x 26-1/2" D, 6 Year Tank & Parts Warranty, Not For Installation In Mobile/Manufactured Homes Will Void Warranty, Recovery At A 90C Rise-Gallons/Hours 81.