ProLine® XE Ultra-Low NOx Indoor 199,000 BTU Non-Condensing Natural Gas/Liquid Propane Tankless Water Heater

Model ATI-510U
5 out of 5 Customer Rating
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Installation Type
Maximum BTU's

  • Continuous flow rate up to 10.0 GPM
  • 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
  • Product Details
    • Continuous flow rate up to 10.0 GPM
    • 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 with supplied kit
    • Highly efficient condensing Ultra-Low Nox tankless water heater delivers up to .81 Uniform Energy Factor (UEF)
    • Vents up to 60 feet using 4” Category III Stainless Steel
    • Includes integrated temperature controls and advanced diagnostics to simplify troubleshooting
    • Safety features include built-in freeze protection, overheat cut-off fuse and air-fuel ratio (AFR) sensor
    • 15-year limited warranty on heat exchanger in residential applications

    • The 510U is well suited for residential/commercial applications such as small restaurants and beauty salons. It features a commercial grade copper heat exchanger with a thicker heat exchanger drum which is suitable for commercial applications or heavier-residential usages such as space heating or domestic recirculation systems. The design allows for a variety of installation options. Complies with Ultra-Low NOx regulations and meets the energy efficiency requirements of ASHRAE 90.1-b 1992. Easy-Link System capable up to 4 units. Multi-Link system capable up to 20 units. The ATI-510U tankless water heater uses up to 199,000 BTU/h of natural gas/liquid propane to deliver an endless supply of hot water for a 2.5 bath home in northern climates and up to a 4 bath home in southern climates (one shower head per bath). The ATI-510U has a Uniform Energy Factor of 0.81. With an industry leading 15-year limited warranty, the ATI-510U tankless water heater provides years of hot water through innovation and quality. 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.

    Specifications
    Tech Specs
    UEF
    0.82
    Maximum BTUs
    199,000
    Power Source
    GAS
    Limited Parts Warranty
    5 Years
    Water Connection Location
    BOTTOM
    Emissions
    Ultra-Low NOx
    ASME Certified
    No
    Destination Country
    US
    Digital Display
    true
    Fuel Source
    NATURAL
    Installation Type
    INDOOR
    Limited Heat Exchanger Warranty 
    15 Years
    Max Flow Rate
    5.00
    Minimum BTUs
    15,000.00
    Application
    RESIDENTIAL
    Product Tier
    ProLine® XE
    Shipping Height 
    28
    Shipping Length 
    16.625
    Shipping Width 
    12.375
    Side Loop
    No
    Dimension & Venting
    Type
    Water Heater
    Height
    20.5"
    Width
    13.75"
    Shipping Weight
    40lbs
    Vent Type
    Direct Vent
    All Reviews for ProLine® XE Tankless Non-Condensing Ultra-Low Nox (200 series)
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