40 gal. Tall 6 Year 36,000 BTU Natural Gas Direct Vent Water HeaterThe Richmond 40 gal. Natural Gas Direct Vent Water Heater features an adjustable coaxial vent that allows for flexible installation and uses outside air for combustion without requiring electrical power. Its aluminum vent and cap base help prevent staining of the building exterior. The unit comes with a factory installed temperature and pressure relief valve, as well as a piezo ignition for easy lighting. Additionally, the 40 gal. tank provides ample