A. O. Smith Signature Series 190,000 BTU Tankless Indoor Natural Gas Heater
A.O. SMITH Tankless Water Heater – INDOOR ATI-310C – 190,000 BTU – Ultra-Low NOx
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.