Adapt® SC Standard Condensing Ultra-Low NOx 199,000 BTU Liquid Propane Tankless Water Heater with X3® Scale Prevention Technology

Model ATM-199X3-P 111
4.2 out of 5 Customer Rating
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X3® Scale Prevention Technology
Maximum BTU's
Fuel Source

  • ENERGY STAR® certified with a UEF of 0.95
  • Powerful performance—Offers maximum flow rates of up to 10.5 GPM and 199,000 BTU/h input for reliable hot water delivery
  • Integrated X3® Scale Prevention Technology—Eliminates the need for annual descaling and extends the unit's lifespan up to three times compared to unprotected units
  • Adapt® SC Standard Condensing Ultra-Low NOx 199,000 BTU Liquid Propane Tankless Water Heater with X3® Scale Prevention Technology
    Model ATM-199X3-P 111
    4.2 out of 5 Customer Rating
    • reviews, product
    • BV SEO Enabled: RR Not Found
    Product Details
    • ENERGY STAR® certified with a UEF of 0.95
    • Powerful performance—Offers maximum flow rates of up to 10.5 GPM and 199,000 BTU/h input for reliable hot water delivery
    • Integrated X3® Scale Prevention Technology—Eliminates the need for annual descaling and extends the unit's lifespan up to three times compared to unprotected units
    • Ultra-Low NOx emissions—Complies with strict air quality management regulations, including SCAQMD Rule 1146.2, for environmentally friendly operation
    • Small footprint means flexible installation options—Supports both indoor and outdoor installations with an optional outdoor vent cap kit
    • Advanced freeze protection—Includes internal freeze protection for the heater and optional freeze protection kits for external cartridges
    • Allows flexible venting with PVC, CPVC, Polypropylene, or ABS pipes, with runs up to 50 feet using 2" PVC and up to 150 feet using 3” PVC
    • Durable Construction—Features a primary copper heat exchanger and secondary stainless steel heat exchanger for long-lasting performance
    • Cascade Capability—Enables connection of up to 12 units with a single cable per heater for increased hot water capacity
    • Comprehensive Warranty—Offers a 15-year limited warranty on the heat exchanger and a 5-year limited warranty on all parts for residential applications

    • ADAPT™ SC Standard Condensing Liquid Propane Tankless Water Heaters with X3® Scale Prevention Technology redefine efficiency and durability in residential water heating. Designed to deliver robust, on-demand performance, these ENERGY STAR® certified units ensure a continuous supply of hot water while maintaining exceptional energy efficiency with a 0.95 Uniform Energy Factor (UEF).

      The innovative X3® Scale Prevention Technology, integrated into all X3 models, eliminates the need for annual descaling and extends the unit's lifespan up to three times longer than unprotected systems. With ultra-low NOx emissions, these water heaters comply with stringent air quality standards, making them an eco-friendly choice for your home. Engineered for ultimate flexibility, the ADAPT™ SC water heaters are suitable for both indoor and outdoor installations, with optional venting kits available for outdoor setups.

      Their compact design, universal installation options, and the ability to cascade up to 12 units make them ideal for any residential setting. Featuring advanced freeze protection, electronic ignition, and a user-friendly interface, these water heaters are built to simplify your life while ensuring reliable performance. With a 15-year limited warranty on the heat exchanger and a 5-year warranty on all parts for residential applications, the ADAPT™ SC water heaters offer peace of mind and long-term value for homeowners.

    Specifications
    Tech Specs
    Nominal Gallon Capacity
    1 Gallons
    UEF
    0.95
    Maximum BTUs
    199,000
    Power Source
    GAS
    Limited Parts Warranty
    5 Years
    Water Connection Location
    BOTTOM
    Water Connection Size
    0.75"
    Emissions
    Ultra-Low NOx
    ASME Certified
    No
    Amperes
    5
    Destination Country
    US
    ENERGY STAR® Certified
    Yes
    Flue Diameter
    2.00
    Fuel Source
    PROPANE
    Ignition Type
    Electronic Hot Surface Igniter
    Installation Type
    BOTH
    Limited Heat Exchanger Warranty 
    15 Years
    GPM (@67 F Temp Rise)
    6 GPM
    Minimum BTUs
    10,000
    Application
    RESIDENTIAL
    Product Tier
    ProLine® XE
    Shipping Height 
    17.88"
    Shipping Length 
    39.13"
    Shipping Width 
    22.25"
    Side Loop
    No
    Voltage
    120
    Dimension & Venting
    Type
    Water Heater
    Height
    32.46"
    Width
    17.12"
    Shipping Weight
    95 lbs
    Vent Material
    ABS, PVC, CPVC and polypropylene
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