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A.O. Smith continues to lead the way in residential and commercial water heating with close to 70 years of innovative hot water solutions. Switching on when a hot water tap is opened, a built in temperature sensor helps to maintain hot water within a one degree set point during use, and the system automatically shuts off when the tap is closed saving you energy. The ATO-110-P features the latest in efficient water heating technology, providing higher rated Energy Factors and meeting Low NOx emissions requirements. An on board controller gives you simple and complete control over your water heater.
Heavy Duty Heat Exchanger
The primary heat exchanger is built out of HRS35 copper, stronger than standard copper and designed to be more resilient against corrosion. A.O. Smith water heaters are built to last and save you money in the process.
Multiple Safety Features
ATO models come with a long list of safety features standard. These include: built in freeze protection, manual reset hi limit, an overheat cutoff fuse, inlet and outlet thermistors to monitor temperatures, and a built-in flame sensor.
Low NOx Emission Standard
The ATO line all qualify for low NOx emissions requirements. This means that these water heaters will save you money while also preserving the environment.
Space Saving Design
A.O. Smith tankless heaters take up less space than their conventional counterparts. The convenient wall mount design means they can fit in nearly any outdoor wall layout and offer additional flexibility.