A. O. Smith Tankless Water Heater Natural Gas - Endless Instant Hot Water up to 10 GPM - Integrated Recirculation Pump - Indoor Condensing 199,000 BTU ProLine® XE ATI-540P-N

A. O. Smith Corporation is one of the world's leading manufacturers of residential and commercial water heaters and boilers, offering a comprehensive product line featuring the best-known brands in North America, China, India, Vietnam and Europe. Customers look to A. O. Smith for innovative solutions to their water heating needs, a reputation we have enjoyed for nearly 80 years. Today we “deliver the world’s hot water” to residential and commercial customers in more than 60 countries, offering some of the best-known and widely respected brands in the industry. Brands deliver long-lasting, reliable service with the features our customers value. We also offer the broadest range of high-efficiency water heating products that save energy... and save our customers money.

• Get uninterrupted hot water througout your home with a continuous flow rate up to 10.0 GPM. Suitable for homes with 3 to 4 bathrooms depending on climate.
• Ensure dependable performance for years to come. Commercial grade materials including marine-grade 316L stainless steel. Limited warranty of 15 years on heat exchanger and 5 years on parts in residential applications.
• No more waiting for your shower water to warm up. Our tankless water heater includes an integrated hot water recirculation pump, giving you instant hot water on demand. Recirculation may require bypass valve, which is not included.
• Safety features include exhaust & water temperature safety control, overheat cut-off fuse and air-fuel ratio (AFR) sensor.
• Professional installation by a licensed plumber recommended. Check your local regulations to ensure compliance. Common vent up to 8 units, Easy-Link 540P with three other 540H to increase flow capacity.