A.O. Smith ATI-540H-N ProLine XE 10.0 GPM 199,000 BTU Indoor Condensing Ultra-Low NOx Natural Gas Tankless Water Heater
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Product Description
A.O. Smith ProLine XE ATI-540H-N is an indoor condensing natural gas tankless water heater with up to 199,000 BTU/h input and 10.0 GPM maximum flow. A commercial-grade copper primary heat exchanger and stainless-steel secondary heat exchanger recover heat from combustion gases. Integrated temperature control and diagnostics support operation and servicing. Actual hot-water flow depends on temperature rise and installation conditions.
Specifications
- Manufacturer / Brand: A.O. Smith
- Model / MPN: ATI-540H-N
- Fuel / installation: Natural gas / indoor condensing
- Input range: 15,000-199,000 BTU/h
- Maximum flow: 10.0 GPM; temperature-rise dependent
- UEF: 0.93
- Height / width / depth: 23-5/8 / 17-3/4 / 11-1/4 inches
- Water / gas connections: 3/4-inch NPT
- Limited warranty: Residential heat exchanger 15 years; parts 5 years; commercial terms differ
- Approximate shipping weight: 71 lbs
Installation & Compatibility
Confirm the model, dimensions, connections and installation requirements against the supplied unit and manufacturer instructions. Manufacturer warranty coverage depends on the product, application and applicable written terms.