ProLine® XE Ultra-Low NOx Outdoor 160,000 BTU Condensing Propane Tankless Water Heater

Model ATO-240H 101
4.8 out of 5 Customer Rating
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Installation Type
Fuel Source
Maximum BTU's

  • ENERGY STAR® certified
  • Continuous flow rate up to 6.6 GPM
  • Primary commercial-grade copper heat exchanger is 25x better than stainless steel at heat transfer, stabilizing outgoing water temperatures quicker
  • ProLine® XE Ultra-Low NOx Outdoor 160,000 BTU Condensing Propane Tankless Water Heater
    Model ATO-240H 101
    4.8 out of 5 Customer Rating
    • reviews, product
    • BV SEO Enabled: RR Not Found
    What to Expect from this Model
    modal-clock
    Unlimited
    single shower length
    modal-frame
    Unlimited
    back-to-back
    modal-frame
    2.2 showers
    at the same time
    modal-tank-capacity
    Unlimited
    max tub size
    modal-cost
    $509/year
    est. energy cost
    Based on location results for Columbus, OH 43215
    Product Details
    • ENERGY STAR® certified
    • Continuous flow rate up to 6.6 GPM
    • Primary commercial-grade copper heat exchanger is 25x better than stainless steel at heat transfer, stabilizing outgoing water temperatures quicker
    • Secondary heat exchanger is made of 316L Stainless Steel to protect against corrosion
    • Highly efficient condensing Ultra-Low Nox tankless water heater delivers up to .94 Uniform Energy Factor (UEF)
    • Flexible power direct vent design allows for venting up to 100 feet using either PVC, CPVC, polypropylene or ABS Pipe (solid core)
    • Common vent up to 8 units
    • 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

    • The 240H Series offers high efficiency Ultra-Low NOx condensing technology allowing for the use of 3” PVC venting and has 0” clearance to combustibles. Features copper primary and 316L stainless steel heat ex-changers to provide high efficiency operation and excellent corrosion resistance. Outdoor models include a remote controller as a standard feature. Indoor models are certified up to 10,100 ft. altitude. Provides a variety of installation options: indoor, outdoor and direct vent. Complies with Ultra-Low NOx regulations and meets the energy efficiency requirements of ASHRAE 90.1b-1992. The ATO-240H-P tankless water heater uses up to 160,000 BTU/hr of liquid propane to deliver an endless supply of hot water for a 2 bath home in northern climates and up to a 3 bath home in southern climates (one shower head per bath). Utilizing condensing technology, this heater is extremely efficient with a Uniform Energy Factor of 0.95. With an industry leading 15-year limited warranty, the ATO-240H-P 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 standards and are only available for purchase through professional wholesalers and contractors.

    Specifications
    Tech Specs
    UEF
    0.95
    Maximum BTUs
    160,000
    Power Source
    GAS
    Limited Parts Warranty
    5 Years
    Water Connection Location
    BOTTOM
    Water Connection Size
    0.75"
    Emissions
    Ultra-Low NOx
    ASME Certified
    No
    LEED Rating
    1.50
    Destination Country
    US
    Digital Display
    Yes
    ENERGY STAR® Certified
    Yes
    Fuel Source
    PROPANE
    Installation Type
    OUTDOOR
    Limited Heat Exchanger Warranty 
    15 Years
    Max Flow Rate
    4.7 GPM
    Minimum BTUs
    13,000
    Application
    RESIDENTIAL
    Product Tier
    ProLine® XE
    Shipping Height 
    33.25"
    Shipping Length 
    21.75"
    Shipping Width 
    15.625"
    Side Loop
    No
    Dimension & Venting
    Type
    Water Heater
    Height
    23.63"
    Width
    17.75"
    Shipping Weight
    69 lbs
    Vent Type
    Power Direct Vent
    Find a Replacement
    Current Product
    Option 2
    Option 3
    ProLine® XE Ultra-Low NOx Outdoor 160,000 BTU Condensing Propane Tankless Water Heater
    Adapt™+ Premium Condensing Ultra-Low NOx 160,000 BTU Natural Gas Tankless Water Heater
    Adapt™+ Premium Condensing Ultra-Low NOx 180,000 BTU Natural Gas Tankless Water Heater
    ATO-240H
    ATHR-160M
    ATHR-180M
    Rebates up to $300 +
    Rebates up to $300 +
    Rebates up to $300 +
    Width
    17.75"
    16.53"
    16.53"
    Depth
    11.25"
    16.12"
    16.12"
    Height
    23.63"
    34"
    34"
    Shipping Weight
    69lbs
    125lbs
    125lbs
    Power Source
    GAS
    GAS
    GAS
    Limited Tank Warranty
    0 Years
    0 Years
    0 Years
    Limited Parts Warranty
    5 Years
    5 Years
    5 Years
    Water Connection Location
    BOTTOM
    BOTTOM
    BOTTOM
    Water Connection Size
    0.75"
    3/4-in"
    3/4-in"
    Thermal Efficiency
    0%
    0%
    0%
    All Reviews for ProLine® XE Tankless High Efficiency Condensing (100 series)
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