A. O. Smith Tankless Ultra-Low NOx Indoor 180,000 BTU Natural Gas Water Heater
A. O. Smith Tankless Ultra-Low NOx Indoor 180,000 BTU Natural Gas Water Heater is well suited for residential/commercial applications such as small restaurants and beauty salons. It utilizes condensing technology to achieve an Energy Factor of 0.95, and is ENERGY STAR® qualified. This model meets Ultra-Low NOx emission requirements, and comes with a 15-year limited warranty.
- Continuous maximum flow rates up to 10.0 GPM
- Complies with lead free standards
- Product Preservers® anti-scale system
Water Heater Description
Includes integrated temperature controls and advanced diagnostics to simplify troubleshooting. Thicker heat exchanger drum and utilizes HRS35 (heat-resistant) copper for the heat exchanger tubing. Includes a pump control port, ensuring efficient operation of all circulation pumps. Meets the energy efficiency requirements of ASHRAE 90.1b-1992. Internal freeze protection system.
Manufacturer SKU: ATI-540H-N
Manufacturer PDF: AOSBG80000.pdf
Water Heater Specifications
A. O. Smith
Tankless (whole house)
|BTU Input (british thermal units)||
Direct Spark Ignition
Water Heater Warranty
Waterheaters.com will honor all warranties in accordance with manufacturer policies and procedures. Manufacturer warranty issues should be addresses directly with the manufacturer.
15 year limited warranty on heat exchanger in residential applications, 10 year limited warranty on heat exchanger in commercial applications, 5 year limited warranty on all parts