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A.O. Smith 9.5 GPM Outdoor Non-Condensing 199,000 BTU Natural Gas Tankless

Standard in-stock item. Online sales currently not available. Price and selection may vary by store. Visit your local store to purchase or call with questions.

SKU #889987

Experience the power of Adapt™ NC non-condensing tankless water heaters, designed to deliver reliable, on-demand hot water for any residential setting. Both indoor and outdoor models provide impressive performance—offering up to 199,000 BTU/h. The ultra-low NOx emissions ensure compliance with stringent air quality standards, while the electronic ignition and freeze protection features guarantee dependable operation year-round. Adapt™ NC models are approved for installation in manufactured homes and can be cascaded (up to 12 units) for larger demands, making them a versatile solution for modern households. Installation is simple, thanks to a standard 3/4” gas line.

  • 199,000 BTU input
  • 9.5 GPM @ 35F rise
  • Highly Efficient – Uniform Energy Factor (UEF) 0.82
  • 5-year limited warranty on all parts in residential applications
  • Ultra Low NOx – Complies with SCAQMD Rule 1146.2
  • Cascade up to 12 units with single cable per heater, cable included
  • Certified from Sea Level to 5,400 ft
  • Ease Of Installation – 3/4” Gas Line or larger
  • Approved for installation in manufactured homes
  • 10-year limited warranty on heat exchanger in residential applications
  • Model: ATO-199B-N

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