The Rheem Performance 40 Gal. Natural Gas Tall Power Vent Water Heater comes with a 40,000 BTU/hour environmentally friendly low NOx burner that provides ample hot water for households with 2-people to 4-people. The electronic ignition system ensures safe and easy startup. Its maintenance free combustion air intake system means there are no filters to clean and replace. The self-diagnostic gas control valve monitors system performance. A premium grade anode rod provides long-lasting tank protection. Factory installed temperature and pressure relief valve and 3/4 in. water connections are included with the water heater for easy installation."}},"base-catalog-326589153":{"__typename":"BaseProduct California and Utah residents (Utah effective 7/1/18): this water heater does not meet ultra-low nox (ULN) emissions requirements, regulations prohibit the sale, shipment or installation of this water heater in any air quality district that requires ULN water heaters, please refer to the maps below to confirm if your home is in a district that requires ULN emission water heaters, and if so please select an approved ULN model 50 gal. tank provides ample hot water for households with 3-people to 5-people Natural gas water heater costs less to operate than electric models Delivers 79 gal. of hot water in the first hour 6-year limited warranty on tank and parts for your convenience 1-year in home labor warranty for peace of mind 0.61 uniform energy factor indicates an energy efficient water heater Maintenance free - no filter to clean or replace Piezo ignition system for no match lighting Adjustable coaxial vent allows for flexibility of installation Rated for installations up to 5,999 ft. Designed for easy replacement of your existing water heater Now features a brass drain valve for added resiliency and durability