- ENERGY STAR® certified
- Delivers 232 GPH at 100°F Rise
- Integrated CT-199 condensing tankless with modulating burner delivers 96% thermal efficiency
- Durable commercial-grade primary copper heat exchanger in CT-199 tankless is 25x better at heat transfer than stainless steel
- CT-199 tankless includes secondary heat exchanger constructed of 316 grade stainless steel
- Durable 119-gallon features commercial grade glass-lining, anode protection and heavy steel gauge jacket
- Available for Natural Gas and Liquid Propane, for indoor use only
- Integrated pumps and controls
- Commercial-grade 4.1 GPM pump, advanced electronic controls and factory installed T&P and pressure relief valves
- 6-year limited warranty on heat exchanger in commercial applications / 5-year limited warranty on all parts
The TX1 condensing water heater combines tankless with a tank to deliver energy saving performance. Includes integrated CT-199 condensing tankless and 119-gallon storage tank. TX-1 uses up to 199,000 BTU/h of natural gas to deliver 232 GPH at 100 rise. A. O. Smith offers the largest commercial product selection available, including the most specified commercial unit in the U.S. We offer more than 500 different commercial models, including gas fired, oil-fired and electric configurations, ranging in capacities from 5 to 10,000 gallons, with input range from 50,000 BTU to the equivalent of 4,000,000 BTU. Our comprehensive line is the natural fit for spec jobs requiring everything from the smallest commercial installation up to the largest multi-structure complex.