Ultra-Low NOx Outdoor Natural Gas Tankless Water Heater with X3® Technology

Model LTO-340X3-N 100
Installation Type
Fuel Source
Maximum BTU's

  • Maintains like-new performance for the life of the product vs. tankless models without X3 that show 10% efficiency reduction in the first 1.5 years
  • 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
  • Ultra-Low NOx Outdoor Natural Gas Tankless Water Heater with X3® Technology
    Model LTO-340X3-N 100
    Product Details
    • Maintains like-new performance for the life of the product vs. tankless models without X3 that show 10% efficiency reduction in the first 1.5 years
    • 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)
    • Recirculation pump capable with the use of a cross-over valve. Sold separately.
    • Ideal choice for residential single-family applications with continuous hot water needs and hard water concerns
    • Safety features include exhaust & water temperature safety control, overheat cut-off fuse and air-fuel ratio (AFR) sensor
    • Industry leading “Peace of Mind” 15-year limited warranty covers scale-related failures
    • Wall-mount design saves valuable space and allows for additional storage and flexibility

    • Condensing Ultra-Low NOx Indoor Tankless Water Heater with X3® Scale Prevention Technology delivers continuous hot water, while protecting against scale build-up. Scale is the #1 enemy for tankless technology. With normal use, typical gas tankless water heaters begin to scale up over time.

    Specifications
    Tech Specs
    Rated Storage Volume
    1 Gallons
    UEF
    0.94
    Maximum BTUs
    180,000
    Power Source
    GAS
    Limited Tank Warranty
    15 Years
    Limited Parts Warranty
    5 Years
    Water Connection Location
    BOTTOM
    Emissions
    Ultra-Low NOx
    First Hour Rating
    1 Gallons
    ASME Certified
    No
    Destination Country
    US
    Digital Display
    Yes
    Fuel Source
    NATURAL
    Installation Type
    OUTDOOR
    Limited Heat Exchanger Warranty 
    15 Years
    GPM (@67 F Temp Rise)
    5.3 GPM
    Minimum BTUs
    15,000
    Application
    RESIDENTIAL
    Shipping Height 
    36.75"
    Shipping Length 
    21.69"
    Shipping Width 
    16.19"
    Side Loop
    No
    Voltage
    120
    Dimension & Venting
    Type
    Water Heater
    Shipping Weight
    70.9 lbs
    Vent Type
    Power Direct Vent