A.O. Smith X3 - 6.2 GPM at 60° F Rise - 0.93 UEF - Propane Tankless Water Heater - Indoor

Model: ATI-540HX3-P Item Number: 123211
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A.O. Smith ATI-540HX3-P
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Our Price: $1,558.00
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A.O. Smith X3 - 6.2 GPM at 60° F Rise - 0.93 UEF - Propane Tankless Water Heater - Indoor
A.O. Smith X3 - 6.2 GPM at 60° F Rise - 0.93 UEF - Propane Tankless Water Heater - Indoor Model: ATI-540HX3-P Item Number: 123211
$1,558.00
In-Stock
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*This product qualifies for Free Shipping anywhere in the contiguous US. Accessories may ship separately. Items over 100lbs shipped via semi-truck, be sure to select "Lift Gate" to lower the product to the ground curbside. Remote area surcharges map apply, see our full shipping policy for more details.
Specification Highlights
    Condition
    New Learn More
    New
    This product is new and has never been used. It's in its original packaging, which has not been opened.
    Weight
    59 Pounds Learn More
    59 Pounds
    Total weight of the product and any included accessory/components. This total is not the shipping weight, as it does not include packing material, which may increase the overall shipping weight of this product.
    Product Category
    Water Heater - Tankless
    UPC
    671657270155
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Maximum Flow Rate
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Fuel Type
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Fuel Type
To create heat, some form of fuel is required. Fuel Type specifies what the product uses as an input to create heat.
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Installation Location
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Features
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Features

Overview for A.O. Smith ATI-540HX3-P

A.O. Smith continues to lead the way in residential and commercial water heating with close to 70 years of innovative hot water solutions. The ATI-540HX3-P condensing gas tankless water heater features X3 Scale Prevention Technology to last three times longer than other tankless models without X3 Technology. Complies with Ultra-Low NOx regulations and utilizes commercial-grade copper alloy for the heat exchanger tubing and are approved to work with an external recirculation pump and cross-over valve. Making this one of the most efficient heaters on the market.
  • X3 Scale Prevention Technology
  • With the patent pending technology, no annual descaling is required. With no scale buildup means the heater maintains like-new performance longer.
  • Heavy Duty Heat Exchanger
  • The primary heat exchanger is built out of copper, offering better heat transfer than stainless steel and designed to be more resilient against corrosion. A.O. Smith water heaters are built to last and save you money in the process.
  • Multiple Safety Features
  • A.O. Smith water heaters come with a long list of safety features standard. These include built-in freeze protection, overheat cutoff fuse, exhaust & water temperature safety control and an Air-Fuel Ratio (AFR) Sensor.
  • Recirc Capable
  • Tankless water heaters with X3 Technology are approved to work with an external recirculation pump and cross over valve.
  • Ultra Low-NOx Emissions
  • This A.O. Smith tankless water heater is designed to qualify for the most stringent Low-NOx standards. These standards coincide with SCAQMD rules and other air quality management districts.
  • Product Includes
  • Installation manual and owner's guide
  • Bird screen
  • X3 cartridge
    • Specifications
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    Specifications

    Overview
    Product Category
    Water Heater - Tankless
    UPC
    671657270155
    General Information
    Type
    Tankless Water Heater
    Product Line
    ProLine XE
    Product Category
    Water Heater - Tankless
    Medium Learn More
    Medium
    Medium refers to the substance that carries heat through the heating system. Systems are either designed to use either Hot Water or Steam as a medium, and components are usually specific to one or the other.
    Hot Water
    Heat Exchanger Material
    Copper/Stainless
    Fuel Type Learn More
    Fuel Type
    To create heat, some form of fuel is required. Fuel Type specifies what the product uses as an input to create heat.
    Liquid Propane
    Combustion Type Learn More
    Combustion Type
    Condensing appliances use leftover thermal energy from combustion gases to heat water in a secondary heat exchanger, resulting in higher efficiency and lower exhaust temperature.
    Condensing
    Vent Type Learn More
    Vent Type
    Products that use combustion (burning) of fuel to create heat also create potentially dangerous gasses that need to be exhausted (AKA "Vented"). Depending on the product, venting can be done via a chimney, through a side wall, or use a second vent to provide fresh air to the appliance.
    Direct Vent
    Storage Type
    Tankless
    Mount Type
    Wall
    Installation Location
    Indoor
    Maximum Altitude
    10100 Feet
    Includes Pump
    No
    Gas Conversion Kit
    Not Available
    Performance
    Maximum Input Capacity Learn More
    Maximum Input Capacity
    The Maximum Input Capacity describes how quickly the appliance will use fuel when delivering it's maximum capacity. The units may change depending on the fuel being used.
    199000 BTU
    Minimum Input Capacity
    13000 BTU
    Flow Rate at 40F Temperature Rise Learn More
    Flow Rate at 40F Temperature Rise
    Flow rate measures how much hot water your heater can deliver. Click Learn More to determine the appropriate temperature rise to use based on your location.
    9.5 GPM
    Flow Rate at 50F Temperature Rise Learn More
    Flow Rate at 50F Temperature Rise
    Flow rate measures how much hot water your heater can deliver. Click Learn More to determine the appropriate temperature rise to use based on your location.
    7.5 GPM
    Flow Rate at 60F Temperature Rise Learn More
    Flow Rate at 60F Temperature Rise
    Flow rate measures how much hot water your heater can deliver. Click Learn More to determine the appropriate temperature rise to use based on your location.
    6.2 GPM
    Flow Rate at 70F Temperature Rise Learn More
    Flow Rate at 70F Temperature Rise
    Flow rate measures how much hot water your heater can deliver. Click Learn More to determine the appropriate temperature rise to use based on your location.
    5.2 GPM
    Uniform Energy Factor Learn More
    Uniform Energy Factor
    Uniform Energy Factor (UEF) is a measurement of water heater energy efficiency. The higher the energy factor, the more efficient the water heater.
    0.93
    Flow Rate at 77F Temperature Rise
    4.8 GPM
    Ultra Low NOx Emissions Learn More
    Ultra Low NOx Emissions
    NOx is a byproduct of the combustion process, and it's output is regulated in some jurisdictions. Many regulators mirror SCAQMD rules, which regulate air quality for some parts of Southern California. Ultra Low NOx appliances emit less than 10-14 ng/J (nanogram per Joule) of NOx.
    Yes
    Electrical Data
    Voltage
    120 Volts
    Phase
    1
    Frequency
    60 Hz
    Dimensions
    Gas Connection Size
    3/4 Inch
    Cold Water Inlet
    3/4 Inch
    Hot Water Outlet
    3/4 Inch
    Product Height
    23 5/8 Inches
    Product Width
    17 3/4 Inches
    Product Depth
    11 1/4 Inches
    Product Weight
    59 Pounds
    Shipping Weight
    73 Pounds
    Certifications
    Energy Star Listed
    Yes
    CSA Listed
    Yes
    AHRI Certified
    Yes
    ANSI Certified
    Yes
    UPC Listed
    No
    AHRI Reference Number
    207209490
    Warranty Information
    Parts Warranty Show ACW Parts Warranty Learn More
    Parts Warranty
    A warranty is a safeguard from defects in manufacturing and can vary in length and terms. To see the manufacturer's warranty statement, click on the Manuals tab. Learn More
    5 Years
    Heat Exchanger Warranty
    15 Years
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    Product Q&A

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    Manuals
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    A.O. Smith X3 - 6.2 GPM at 60° F Rise - 0.93 UEF - Propane Tankless Water Heater - Indoor
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