This water heater comes with a two-year in home labor warranty and has a powerful 50,000 BTU burner featuring reduced emissions Low-NOx technology. This heater provides ample hot water for households with five people. Its tall profile gives this heater a smaller footprint and allows for easy installation when tank diameter is a factor. The heater also features an FVIR System, an exclusive air/fuel shutoff device that prevents ignition of flammable vapors should they be detected outside the unit. The air intake is designed to be completely maintenance free with no filters to clean or replace. The heater has a six-year tank warranty and meets or exceeds NAECA and ASHRAE requirements.