An expert in both water heating and treatment, A. O. Smith is uniquely qualified to
combine the two technologies in a product designed to revolutionize tankless water
heating. Our new condensing gas tankless line features X3 Technology to last three
times longer than competitive models. The X3 line of heaters are field convertible from Natural Gas to Liquid Propane
The AT-160X3P tankless water heater uses up to 160,000 BTUs of Natural Gas or Liquid Propane to deliver a max flow rate of 6.5 GPM. It utilizes condensing technology to achieve a Uniform Energy Factor of 0.93. This model meets Ultra-Low NOx requirements, and has a 15-year limited warranty on the heat exchanger in residential applications.