Oil-Fired Water Heater; Applicable Standard ASHRAE, ANSI Z.21.10.1/NFPA 31, UL (Canada and US), UL, Gama; Inlet/Outlet Connection 1" Threaded x 1-1/2" Threaded; Relief Valve Details T and P Relief Valve Factory Installed; Input Supply Rating 140000 BTU/HR; Voltage Rating 120 Volt 60 Hertz 1-Phase; Tank Dimensions 26" Diameter x 52" Height; Tank Material Cobalt Enriched Glass Lined; Tank Capacity 50 Gallon; Tank Warranty 5 Year Limited ( Residential), 3 Year Limited ( Commercial); GPH Recovery 151 GPH at 90 DEG F; Firing Rate 1 GPH; Drain Valve Details Factory Installed Brass Drain Valve; Energy Saver Conformance Yes; Options Relief Valve; Inclusions/Features Dual Magnesium Anode Rods, Hundreds of Turbofins; Working Pressure 150 PSI; Testing Pressure 300 PSI; Exclude Nipple; Maximum Temperature Rating 160 DEG F