A. O. Smith ATO-110U-N Outdoor Natural Gas Ultra-Low NOx Non-Condensing Tankless Water Heater
140,000 BTU tankless gas water heater for residential applications
The ATO-110U is perfect for one bath homes, condos, apartments in cold climates and summer cabins.
New, Improved Features
• Heat-resistant copper heat exchanger tubing
• Set up for natural gas from factory, but field convertible from NG to LP with included gas conversion kit
• Recess Box (for outdoor models)