A. O. Smith Tankless Ultra-Low NOx Indoor 199,000 BTU Natural Gas Water Heater

A. O. Smith Tankless Ultra-Low NOx Indoor 199,000 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

SKU: AOS-ULN-199-ATI-540H-N Categories: Commercial Water Heaters, Residential Water Heaters

Video
Description
Specifications
Warranty

Water Heater Description

Indoor model, 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

Brand	A. O. Smith
Fuel	Natural Gas
Style	Tankless (whole house)
BTU Input (british thermal units)	199,000
Ignition Type	Direct Spark Ignition
Energy Star	Yes

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