- ENERGY STAR® certified with a UEF of 0.95
- Flexibility in Installation—PVC venting flexibility (2” up to 50’ & 3" up to 150’)
- Save up to $116/year on operating costs—Compared to a standard 50-gallon atmospheric vent natural gas tank water heater
- Lasts 3x Longer—Integrated X3® Scale Prevention Technology provides protection for the heat exchanger
- Small footprint means flexible installation options—Supports both indoor and outdoor installations with an optional outdoor vent cap kit
- Expandable for Larger Applications—Cascade up to 12 like heaters when multiple water heaters are required to work in conjunction (cable included)
- Built-in Control Display—Check status, error codes and settings using the built-in display
- Durable Construction—Features a primary copper heat exchanger and secondary stainless steel heat exchanger for long-lasting performance
- Cascade Capability—Enables connection of up to 12 units with a single cable per heater for increased hot water capacity
- Comprehensive Warranty—Offers a 15-year limited warranty on the heat exchanger and a 5-year limited warranty on all parts for residential applications
The ATM-199X3-N Adapt® SC Standard condensing tankless water heater uses up to 199,000 BTUs of Natural Gas to deliver a max flow rate of 10.5 GPM. A. O. Smith’s Adapt® SC tankless water heaters deliver robust, on-demand performance and the flexibility to install in virtually any residential setting.
Built-in X3® Scale Prevention Technology helps maintain like-new performance by protecting the heat exchanger from build-up. Scale prevention protection can prolong the life of the heat exchanger by up to 300% as compared to an unprotected unit.
The Adapt® SC line features a built-in Control Display for setting and checking heater status and error codes.
All models are ENERGY STAR® certified with a Uniform Energy Factor of 0.95 and comply with Ultra-Low NOx regulations. All Adapt® SC models can be installed indoors or outdoors (outdoor vent cap kit sold separately).
Cascade up to 12 like heaters for larger applications requiring multiple water heaters to work in conjunction, cable included.
