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AO Smith

Tankless Water Heater Condensing Ultra-Low NOx Indoor 199,000 BTU Natural Gas

Category Tankless
dds-18142887
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AO Smith

Tankless Water Heater Condensing Ultra-Low NOx Indoor 199,000 BTU Natural Gas

Item Code: dds-18142887
The 540P series integrates a recirculation pump to provide instant hot water in residential applications with dedicated recirculation lines. The pump is easily controlled with a simple user interface and multiple pump settings allow you to customize pump operation to meet your needs while maximizing heater efficiency. The onboard computer modulates combustion to yield an up to 0.95 Uniform Energy Factor (UEF) while meeting the strictest gas emissions standards. As part of the high efficiency tankless family, the 540P series provides endless hot water while being environmentally friendly.
Category Tankless
  • The ATI-540P-N indoor tankless water heater uses up to 199,000 BTU/hr of natural gas to deliver an endless supply of hot water for a 3 bath home in northern climates and a 4 bath home in southern climates. It is built with commercial grade materials like marine-grade 316L stainless steel giving it an industry-leading warranty.

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The 540P series integrates a recirculation pump to provide instant hot water in residential applications with dedicated recirculation lines. The pump is easily controlled with a simple user interface and multiple pump settings allow you to customize pump operation to meet your needs while maximizing heater efficiency. The onboard computer modulates combustion to yield an up to 0.95 Uniform Energy Factor (UEF) while meeting the strictest gas emissions standards. As part of the high efficiency tankless family, the 540P series provides endless hot water while being environmentally friendly.
  • Brand : AO Smith
  • Category : Tankless

Fetching product details


The 540P series integrates a recirculation pump to provide instant hot water in residential applications with dedicated recirculation lines. The pump is easily controlled with a simple user interface and multiple pump settings allow you to customize pump operation to meet your needs while maximizing heater efficiency. The onboard computer modulates combustion to yield an up to 0.95 Uniform Energy Factor (UEF) while meeting the strictest gas emissions standards. As part of the high efficiency tankless family, the 540P series provides endless hot water while being environmentally friendly.
  • Brand : AO Smith
  • Category : Tankless
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