Bradford White® Gas Water Heater, 40 gal Capacity, 34000 Btu/hr, 64 gal First Hour Delivery, 0.59 Energy Factor, 37 gph Recovery Rate, 3 in, 4 in Vent, Atmospheric Vent, NPT Connection, 150 psi, Recovery Efficiency: 80 %, Floor Mounting, LP Gas Fuel, ICON System® Ignition System, Piezo Ignition, Finish: Vitraglas Lined, 160 deg F, 61-5/16 in H x 18 in W x 21-1/2 in D, Domestic/Import: Domestic, 2000 ft Altitude