a.o. Smith Signature Select 8-GPM 190000-BTU Indoor Natural Gas/Liquid Propane Tankless Water Heater | GT15-310C-I

Enjoy continuous hot water for up to 3 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. Uses 3/4 inch gas line 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.