Williamson 131K BTU 83.9% AFUE Steam Oil Boiler Chimney Vent

Model: OSB-5-P-S2-W-W Item Number: 31074
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Williamson-Thermoflo OSB-5-P-S2-W-W
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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
    820 Pounds Learn More
    820 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
    OSB
    Medium
    Steam
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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 Williamson-Thermoflo OSB-5-P-S2-W-W

"Uncover warm possibilities" with Williamson-Thermoflo's OSB oil fired steam boiler. The efficient OSB-5-P-S2-W-W pumps out 174,000 BTUs with a thermal efficiency rating rating of 83.9 percent. The OSB is also designed with a solenoid valve, PSC motor, and a solid state igniter to maintain that efficiency. This boiler is equipped with many features, such as a plug-in wiring harness, cast-iron sections, and an insulated heavy-gauge steel jacket. The OSB is also easily serviced with a swing-away burner door and top access cleanout cover. Since it is factory tested and comes with a limited 10 year warrant on cast iron sections, you can be absolutely sure that your investment is reliable and built to last.
  • Factory Tested
  • OSB boilers are factory tested, ensuring reliability and properly functioning equipment.
  • Factory Packaged
  • OSB boilers are factory packaged meaning that the boiler comes to you mostly assembled and ready for installation.
  • Easy Service
  • With a swing-away burner door, top access cleanout cover, and plug-in wiring harness, servicing the OSB boiler easy.
  • 10 Year Warranty
  • A limited 10 year warranty on the cast iron sections means that you can rest assured that your investment is covered, should there be a problem.
    • Specifications
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    Specifications

    General Information
    Product Line
    OSB
    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.
    Steam
    Heat Exchanger Material
    Cast Iron
    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.
    Oil
    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.
    Conventional
    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.
    Chimney 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.
    Available
    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.
    Single Stage
    Mount Type
    Floor
    Maximum Altitude
    2000 Feet
    Includes Pump
    No
    Assembly Type
    Semi-Packaged
    Burner Model
    Sold Separately
    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.
    83 %
    Input Rate
    1.45 GPH
    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.
    174000 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.
    131000 BTU
    Electrical Data
    Phase
    1
    Frequency
    60 Hz
    Dimensions
    Supply Connection
    2 1/2 Inches
    Return Connection
    2 Inches
    Product Height
    35 5/8 Inches
    Product Width
    20 1/4 Inches
    Product Depth
    23 1/8 Inches
    Product Weight
    820 Pounds
    Shipping Weight
    830 Pounds
    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
    3 Years
    Heat Exchanger Warranty
    10 Years
    Reviews
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    Williamson 131K BTU 83.9% AFUE Steam Oil Boiler Chimney Vent
    Williamson-Thermoflo OSB-5-P-S2-W-W
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