The ATM-199X3-N Adapt® SC Standard condensing tankless water heater uses up to 199,000 BTUs of Natural Gas. 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).
- ENERGY STAR® certified with a UEF of 0.95
- 10.5 GPM @ 35F rise
- 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
- Model: ATM-199X3-2
