30 Gallon, Tall, Natural Gas Water Heater, 35,500 BTUs, Electronic Gas Control Valve, Piezo Igniter, Pex Dip Tube, Glass Lined Tank With Anode Rod, Environmentally Friendly Non CFC Foam Insulation, Factory Installed Pex Polymer Lined Heat Trap Nipples, Factory Installed Temperature & Pressure Relief Valve, Rated Storage Volume: 29, First Hour Rating: 69 Gallons, Recovery At A 90 Degree Rise: 36 Gallons Per Hour, Water Connection Is Located At The Top Of The Tank, Water Connection Size: 3/4", Vent Size: 3" Or 4", UEF: 0.61, EF: 0.63, Unit Dimensions: 61 3/4"H x 16"D, Shipped From The Factory With An Insulation Blanket, 6 Year Limited Tank & Parts Warranty.