Weil-McLain 70 CT 65K BTU 95.2% AFUE Hot Water Gas Boiler Direct Vent

Model: WM97+ 70 CT Item Number: 77942
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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
    140 Pounds Learn More
    140 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
    WM97+
    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 WM97+ 70 CT

Overview for Weil-McLain 383700006Over 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. If you're looking for modulating, condensing efficiency in a low profile boiler, a WM97+ is right for you. The WM97+ packs a considerable amount of power and technology into a small package. Condensing technology means you'll get the most out of your energy dollar by capturing and reusing heat that escapes from traditional boilers. A modulating burner allows for precise heat production, making it easier than ever to stay comfortable without breaking the bank. Managing the WM97+ is a simple affair. A large LCD display, simplified system commands, and prewired terminals see to that. If you require proof that good things come in small packages, simply look to the WM97+.
Product Features
Fire Tube Heat ExchangerThe WM97+ forgoes a typical heat exchanger for a fire tube heat exchanger. Fire tube heat exchangers are known for their steady temperatures. They allow for larger water content than traditional heat exchangers, which reduces short cycling and temperature fluctuations.Outdoor Reset ControlAn outdoor reset sensor is included with every WM97+ boiler. This sensor allows your boiler temperature to be adjusted relative to the temperature outside, eliminating excess energy use and guaranteeing comfort.Easy InstallationThe compact size and venting options of the WM97+ mean it is suited for any installation. Whether you have a boiler room or a closet, the WM97+ mounts conveniently on the wall for unobtrusive comfort. Venting can be accomplished vertically or horizontally, and with either standard direct vent piping or concentric piping.Self-ContainedWeil-McLain has packed the WM97+ full of useful components. A Taco circulator is used for boiler circulation and an expansion tank is contained within the unit. A built-in primary/secondary piping option makes it easy to include additional water temperatures.Simple ZoningThe WM97+ control system can handle demands and mixing for up to three zones. Combine this with the internal primary/secondary piping and the WM97+ is the perfect complement to a multi-zone system.
Product Includes
  • (1) Weil-McLain WM97+ 70 CT Hot Water Boiler
  • (1) Taco 007 Circulator
  • (1) Outdoor Temperature Sensor
  • (1) Wall Mount Bracket
  • (1) Natural Gas to Liquid Propane Conversion Kit
  • Fire Tube Heat Exchanger
  • The WM97+ forgoes a typical heat exchanger for a fire tube heat exchanger. Fire tube heat exchangers allow for larger water content than traditional heat exchangers, which reduces short cycling and temperature fluctuations.
  • Outdoor Reset Control
  • An outdoor reset sensor is included with every WM97+ boiler. This sensor allows your boiler temperature to be adjusted relative to the temperature outside, eliminating excess energy use and guaranteeing comfort.
  • Easy Installation
  • The compact size and venting options of the WM97+ mean it is suited for any installation. Whether you have a boiler room or a closet, the WM97+ mounts conveniently on the wall with a wide variety of venting options.
  • Self-Contained
  • A Taco circulator is used for boiler circulation and an expansion tank is contained within the unit. A built-in primary/secondary piping option makes it easy to include additional water temperatures.
  • Simple Zoning
  • The WM97+ control system can handle demands and mixing for up to three zones. Combine this with the internal primary/secondary piping and the WM97+ is the perfect complement to a multi-zone system.
    • Specifications
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    Specifications

    General Information
    Product Line
    WM97+
    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
    5500 Feet
    Assembly Type
    Packaged
    Includes Pump
    Yes
    Gas Conversion Kit
    Included
    UPC
    0672619208131
    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.
    95 %
    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.
    70000 BTU
    Minimum Input Capacity
    14000 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.
    65000 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.
    57000 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
    Turndown Ratio
    5:1
    Electrical Data
    Voltage
    120 Volts
    Phase
    1
    Frequency
    60 Hz
    Dimensions
    Gas Connection Size
    1/2 Inch
    Flue Connection Size
    3 Inches
    Supply Connection
    1 Inch
    Return Connection
    1 Inch
    Product Height
    32 5/8 Inches
    Product Width
    19 Inches
    Product Depth
    20 Inches
    Product Weight
    140 Pounds
    Shipping Weight
    136 Pounds
    Certifications
    Country of Origin
    United States
    CSA Listed
    Yes
    Energy Star Listed
    Yes
    ASME Certified
    Yes
    AHRI Certified
    Yes
    AHRI Reference Number
    5677839
    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
    12 Years
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