The GE 75-gal. ultra low Nox natural gas water heater provides up to 120 gal. of hot water for the first hour delivery with a recovery rating of 75.8 gal. per hour at a 90 degree rise. The unit features a flammable vapor detection system that disables the heater in the presence of flammable vapors. Maintenance free design with no filter to clean. 6 year tank and parts limited warranty. Unit designed to meet the needs of large households who require hot water for multiple appliances at the same time. Standard 110 Volt electrical connection required for operation.