Natural gas water heater, 2 insulation. For installations from sea level to 10,100 . Draft diverter outlet size 3 with integrated adapter for 4 vent option. T P relief valve, glass lined tank, anode rod, PEX polymer lined heat trap nipples. PEX dip tube, Next Generation FVIR Approved, stainless steel flame arrestor. Air intake entire base of heater, door mounted manual reset temperature cut off, self powered Honeywell Millivolt Generator Gas Control Valve. 6 year tank parts warranty. Not for use in mobile manufactured homes. Meets new NAECA 2015 Efficiency Standards.Features 40 gallon. Natural gas water heater, short. 40000 btu. 2 in. Insulation. For installations up to 10100 ft. 0.62 energy factor. Recovery at a 90 degrees rise-gallons/ hours 41. First hour rating 69. Draft diverter outlet size – 3 in. With integrated adapter for 4 in. Vent option. Temperature pressure relief valve. Glass lined tank with heavy-duty anode rod protects against corrosion. Pex polymer lined heat trap nipples. Pex dip tube helps maintain efficiency. Stainless steel flame arrestor. Air intake entire base of heater. Door mounted manual reset temperature cut off. Self powered honeywell millivolt generator gas control valve. Dimension – 26.13 l x 23.13 w x 51.31 h in. Item weight – 135 lbs. – SKU: TRVAL70161