AO Smith ATI-540H-N Indoor NG Ultra-Low NOx Condensing Tankless
199,000 BTU tankless gas water heater with Ultra-Low NOx emissions
** This is the maximum output temperature, not a minimum, and depending on the water flow rate and incoming water temperature, the actual output temperature may not reach 160°F.
This model is 100% identical to the American GT-540-NIH. The only difference is the label.
The GT-540-NIH can be set to a maximum output temperature of 160 degrees F. Note that this is a maximum, not a minimum. The actual output temperature depends on the water flow rate and incoming water temperature.