Weil-McLain 109K BTU 92.2% AFUE Hot Water Gas Boiler Direct Vent

Model: WMB-120 Item Number: 79509
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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
    64 Pounds Learn More
    64 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 Line
    AquaBalance
    Medium
    Hot Water
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Recommended Accessories
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Required Accessories Add All Required
Installation Accessories
Features
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Features

Overview for Weil-McLain WMB-120

Overview for Weil-McLain 383100025Over the last 130 years, Weil-McLain has built a reputation of designing some of the most reliable boilers in the marketplace. Their dedication to producing long-lasting heating solutions is seen in every boiler they make. Weil-McLain's AquaBalance™ hot water boiler is highly efficient, compact, and remarkably versatile. Using condensing technology, the AquaBalance™ will reuse heat that escapes from conventional boilers, providing greater efficiency. Simple design along with Honeywell® controls make the AquaBalance™ easy to install and easy to use. With a 92.2% AFUE, Low Nox certification, and a 10:1 turndown ratio, the AquaBalance™ WMB-120 makes comfort and efficiency more accessible than ever before.
  • High Efficiency Heating
  • Weil-McLain's rigorous standards of boiler efficiency are clearly shown in the AquaBalance™ line. The AquaBalance™ WMB-120 features a stainless steel, titanium-infused heat exchanger which allows for an impressive 92.2% AFUE.
  • Easy Installation
  • The AquaBalance™ comes pre-wired with a plug-in ready electrical design. Fewer pipes and connection points streamline the installation process, allowing you to get the system up and running quickly.
  • Compact Design
  • The AquaBalance's™ compact design is small enough to fit in a closet; a perfect solution for families living in smaller homes or apartments. It also features a heavy gauge insulated jacket to provide extremely quiet operation.
  • Outdoor Reset Control
  • An outdoor reset sensor is included with every AquaBalance™ boiler. This sensor allows your boiler temperature to be adjusted relative to the temperature outside, eliminating excess energy use and guaranteeing comfort.
  • Contractor Friendly
  • Along with simple installation, the AquaBalanace™ also features removable sides panels. This makes all of the internal components very accessible, allowing for quick and easy service.
  • Product Includes
  • (1) Weil-McLain AquaBalance™ WMB-120 Hot Water Boiler
  • (1) Outdoor Temperature Sensor
  • (1) Mounting Bracket & Hardware
  • (1) 3-in-1 Vent Adapter
    • Product Note
    Compatible NG to LP Conversion Kit: Williamson-Thermoflo 640-000-025
    Specifications
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    Specifications

    General Information
    Product Line
    AquaBalance
    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
    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.
    Direct Vent
    DHW Production Learn More
    DHW Production
    DHW (Domestic Hot Water) is potable water for uses other than space heat. Some boilers are able to provide DHW "out of the box", while others can do so with the purchase of optional accessories.
    No
    Modulating/Staging Learn More
    Modulating/Staging
    Stages are unique speeds or levels that equipment can operate at. More stages allow for better fine-tuned control of output, which improves comfort and efficiency. Modulating equipment can operate across a range of levels, giving the highest level of fine-tuned control.
    Modulating
    Mount Type
    Wall
    Minimum Altitude
    0 Feet
    Maximum Altitude
    10000 Feet
    Includes Pump
    No
    Assembly Type
    Packaged
    Gas Conversion Kit
    Optional
    UPC
    672619208797
    Performance
    AFUE Learn More
    AFUE
    AFUE (Annual Fuel Utilization Efficiency) measures the efficiency of combustion equipment over the entire heating season, and is calculated by dividing the amount of energy that is actually heating your home by the total energy contained in the fuel used by the boiler/furnace.
    92 %
    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.
    120000 BTU
    Minimum Input Capacity
    12000 BTU
    DOE Heating Capacity Learn More
    DOE Heating Capacity
    Also referred to as Gross Output, this is the output of a boiler after accounting for combustion efficiency. We recommend sizing hot water boilers based on the DOE Heating Capacity.
    109000 BTU
    Net I=B=R Capacity Learn More
    Net I=B=R Capacity
    I=B=R, also referred to as Net Output or AHRI Capacity, is the rated heat output of a boiler after accounting for combustion efficiency, piping loss, and an extra pickup factor. We recommend sizing steam boilers based on the I=B=R rating.
    95000 BTU
    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
    Low NOx Emissions Learn More
    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. Low NOx appliances emit less than 40 ng/J (nanogram per Joule) of NOx.
    Yes
    Turndown Ratio
    10:1
    Electrical Data
    Phase
    1
    Dimensions
    Gas Connection Size
    1/2 Inch
    Flue Connection Size
    3 Inches
    Boiler Supply
    3/4 Inch
    Boiler Return
    3/4 Inch
    Product Height
    27 9/16 Inches
    Product Width
    16 13/24 Inches
    Product Depth
    12 29/48 Inches
    Product Weight
    64 Pounds
    Shipping Weight
    74 Pounds
    Certifications
    Energy Star Listed
    Yes
    CSA Listed
    Yes
    ASME Certified
    Yes
    AHRI Certified
    Yes
    AHRI Reference Number
    10441941
    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
    2 Years
    Heat Exchanger Warranty
    10 Years
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    Weil-McLain WMB-120
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