ProLine® XE Concentric Vent Indoor 190,000 BTU Non-Condensing Natural Gas Tankless Water Heater with X3® Scale Prevention Technology

Model ATI-310CX3
Maximum BTU's

  • Continuous flow rate up to 8.0 GPM
  • X3® Scale Prevention Technology
  • Wall-mount design saves valuable space and allows for additional storage and flexibility
  • Product Details
    • Continuous flow rate up to 8.0 GPM
    • X3® Scale Prevention Technology
    • Wall-mount design saves valuable space and allows for additional storage and flexibility
    • Commercial-grade copper heat exchanger is 25x better than stainless steel at heat transfer, stabilizing outgoing water temperatures quicker
    • Easily convertible from natural gas to propane
    • Highly efficiency tankless water heater delivers up to .81 Uniform Energy Factor (UEF)
    • Direct vent APNC35 concentric vent system, Vertical or Horizontal Vent Termination Installation
    • Includes integrated temperature controls and advanced diagnostics to simplify troubleshooting
    • Safety features include exhaust & water temperature safety control, overheat cut-off fuse and air-fuel ratio (AFR) sensor
    • 15-year limited warranty on heat exchanger in residential applications

    • Fully modulating, gas fired, tankless water heater with sealed combustion and power vented flue. Supplies hot water to domestic hot water systems (directly or indirectly) and can be used with water storage tanks, re-circulation systems (with use of a crossover valve), and/or combined domestic and heating applications. The ATI-310CX3 tankless water heater uses up to 190,000 BTUs of Natural Gas or Liquid Propane to deliver a max flow rate of 8.0 GPM. It utilizes condensing technology to achieve a Uniform Energy Factor of 0.81. This model meets Ultra-Low NOx requirements, and has a 15-year limited warranty on the heat exchanger in residential applications. A. O. Smith’s ProLine® water heaters are residential products built to commercial-grade standard and are only available for purchase through professional wholesalers and contractors. Now with X3® Scale Prevention Technology, these non-condensing units offer extended service life of up to three times longer than traditional/unprotected models.

    Specifications
    Tech Specs
    UEF
    0.81
    Maximum BTUs
    190,000
    Power Source
    GAS
    Limited Parts Warranty
    5 Years
    Water Connection Location
    BOTTOM
    Water Connection Size
    3/4-in"
    ASME Certified
    No
    Destination Country
    US
    Fuel Source
    MULTIPLE
    Ignition Type
    Electronic Hot Surface Igniter
    Installation Type
    INDOOR
    Limited Heat Exchanger Warranty 
    15 Years
    Max Flow Rate
    4.60
    Minimum BTUs
    15,000.00
    Shipping Height 
    35.5
    Shipping Length 
    18
    Shipping Width 
    15.7
    Side Loop
    No
    Voltage
    120
    Dimension & Venting
    Type
    Water Heater
    Height
    36.125"
    Width
    14"
    Shipping Weight
    62.6lbs
    Vent Type
    Concentric Vent