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Ultra-low-nox-gas-water-heater, rheem performance 40 gal. tall 6 year 38,000 btu ultra low nox (uln) natural gas tank water heater. The proline® ultra-low nox gas water heater delivers an efficient, reliable performance and features an innovative design that protects against accidental ignition of flammable vapors., discover bradford white's innovative and efficient line of gas-ultra-low-nox water heaters for a variety of applications. learn more about bradford white's gas-ultra-low-nox water heaters and how you can have one installed.. The bradford white ultra low nox is a gas water heater available in four types: atmospheric vent, power vent, power direct vent, and direct vent. the unit features an ultra-low nox burner with primary and secondary air distribution device and is maintenance free., a. o. smith's signature select 50-gallon tall ultra low nox atmospheric vent natural gas water heater is designed to provide efficient and reliable hot water for households with 5+ people when sized appropriately..

The westinghouse 11 gpm ultra low nox natural gas condensing high efficiency tankless water heater has a durable high grade stainless steel heat exchanger. the westinghouse residential tankless produces continuous hot water and has a 10 to 1 turndown ratio. it is also equipped with a highly innovative water leak detector., ultra-low nox single flue commercial gas water heater available in 74 and 98 gal models for complete information on limited warranties, consult written warranty or contact the american warranty and service support team at 1-800-456-9805..

This recall includes 30, 40 and 50 gallon natural or propane gas-fired ultra-low nox emission gas water heaters. they are designed to comply with regulations in certain air quality districts in california, and were sold primarily in california., the proline® ultra-low nox direct vent residential gas water heaters offer horizontal or vertical venting options in an fvir solution to reduce the risk of accidental fires involving flammable vapors..

The difference between low nox and ultra-low nox is determined by local epa standards and based on the type of heating equipment. for example, it's not uncommon to see an ultra-low nox water heater that emits less than 10 nanograms of no2 per joule of heat output (10 ng/j).