A.O. Smith X3 - Residential 160,000 BTU Ultra-Low Nox - Natural Gas Tankless Water Heater with X3 Technology - Outdoor

Model: ATO-240HX3-N Item Number: 123224
A.O. Smith ATO-240HX3-N
PREVIOUS
NEXT
A.O. Smith ATO-240HX3-N
Enlarge Image
Our Price: $1,453.00
synchrony card icon
$243 / Month
Suggested monthly payments with 6 month financing.
Factory-Direct
Ships in 4-6 Weeks
A.O. Smith X3 - Residential 160,000 BTU Ultra-Low Nox - Natural Gas Tankless Water Heater with X3 Technology - Outdoor
A.O. Smith X3 - Residential 160,000 BTU Ultra-Low Nox - Natural Gas Tankless Water Heater with X3 Technology - Outdoor Model: ATO-240HX3-N Item Number: 123224
$1,453.00
Factory-Direct
-
+
Accessories
Features
Specifications
Reviews
Product Q&A
Manuals
Shipping Crate Icon
Free Shipping Learn More
Free Shipping
*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
    671657270247
Maximum Flow Rate
Select Attribute
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.
Select Attribute
Installation Location
Select Attribute
Recommended Accessories
View More
Required Accessories Add All Required
Installation Accessories
Features
View More

Features

Overview for A.O. Smith ATO-240HX3-N

A.O. Smith continues to lead the way in residential water heating with close to 70 years of innovative hot water solutions. The ATO-240HX3-N 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
  • Temperature remote controller kit
  • X3 cartridge
  • Specifications
    View More

    Specifications

    Overview
    Product Category
    Water Heater - Tankless
    UPC
    671657270247
    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.
    Natural Gas
    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.
    Outdoor (No Venting)
    Storage Type
    Tankless
    Application
    Residential
    Mount Type
    Wall
    Installation Location
    Outdoor
    Maximum Altitude
    6000 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.
    160000 BTU
    Minimum Input Capacity
    15000 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.
    6.7 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.
    6.1 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.
    5.1 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.
    4.3 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.
    0.95
    Flow Rate at 77F Temperature Rise
    3.8 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
    71 Pounds
    Certifications
    Energy Star Listed
    Yes
    CSA Listed
    Yes
    AHRI Certified
    Yes
    ANSI Certified
    Yes
    UPC Listed
    No
    AHRI Reference Number
    207861939
    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. Some manufacturers require registration for extended warranty benefits, be sure to check out features and the warranty document. To see the manufacturer's warranty statement, click on the Manuals tab. Learn More
    5 Years
    Heat Exchanger Warranty
    15 Years
    Reviews
    View More

    Reviews

    Do You Own This Product?

    Give us your opinion on this product and help any future buyer's make an informed decision.

    Product Q&A
    View More

    Product Q&A

    Be the first to ask a question.

    Whether it's a general or technical question ACWholesalers can help. Our customer service team is backed by years of experience so you can have confidence knowing that you'll be getting an insightful response.

    Manuals
    View More
     
    Share
    ×
    A.O. Smith X3 - Residential 160,000 BTU Ultra-Low Nox - Natural Gas Tankless Water Heater with X3 Technology - Outdoor
    A.O. Smith ATO-240HX3-N
    Loading
    ×
    Customer Review Images
    Loading
    Scroll Up ArrowTo Top