A. O. Smith's Signature Select Non-Condensing Ultra-Low NOx Indoor Tankless Gas Water Heater uses up to 140,000 BTU/h of natural gas or propane to deliver a 2.5 gallons per minute flow rate (based on a 90°F rise) of continuous hot water for your home when sized appropriately. This makes it a good match for whole home applications. A. O. Smith Tankless Gas water heaters only heat water when needed, making them one of the most energy efficient ways to heat water. This high efficiency non-condensing indoor model has a 0.81 Uniform Energy Factor (UEF) and can reduce your energy consumption and save money on your energy bills. Additionally, our Tankless Gas design can be easily wall-mounted indoors, saving you valuable storage space. This model may qualify for additional energy efficiency rebates and tax credits in your local area. See Lowe's Rebate Center for details. Not sure if this is the right water heater for you? Use our product selector tool to see if this model is the right fit for your hot water needs. Tankless gas water heaters have special installation requirements. Professional installation is required.
Enjoy continuous hot water for up to 2 simultaneous showers when sized appropriately
Save money and energy with our energy efficient Ultra Low NOx indoor model that operates at a 0.81 Uniform Energy Factor (UEF)
Compact, indoor wall-mounted design frees up valuable storage space
Professional installation required; call 877-556-4223
Uses 1/2 inch gas line up to 10 feet or 3/4 inch gas line for longer lengths and is easily convertible from natural gas to propane with supplied kit
Easy temperature adjustment and troubleshooting with integrated controls
Primary heat exchanger design provides superior heat transfer and protection resulting in extended product life
Worry-free safety features include freeze, overheat, and surge protection as well as troubleshooting diagnostic codes
15-year limited residential warranty gives you peace of mind