Weil-McLain Chimney Vent Boilers

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Net I=B=R Capacity (BTU) Learn More
Net I=B=R Capacity (BTU)
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.
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DOE Heating Capacity (BTU) Learn More
DOE Heating Capacity (BTU)
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.
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Maximum Input Capacity (BTU) Learn More
Maximum Input Capacity (BTU)
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.
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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.
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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.
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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.
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Product Line
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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.
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Product Height (Inches)
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Price
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Efficiency (%)
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Product Width (Inches)
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Product Depth (Inches)
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Input Rate (GPH)
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Minimum Altitude (Feet)
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$3,258.21
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$3,776.31
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$4,309.85
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$2,387.13
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$2,959.72
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$3,477.00
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$4,013.80
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$4,429.41
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$3,876.35
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$4,413.00
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$3,507.91
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$4,048.77
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$4,732.00
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$4,731.16
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$4,556.00
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$3,487.57
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$4,398.00
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$4,860.00
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$3,355.81
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Factory-Direct
Floor Mounted, Cast Iron Boiler with Single Stage Gas Valve. Ships Disassembled. Ratings: 350K BTU Gross Input, 283K BTU DOE Capacity, 212K BTU Net IBR Capacity.
Item#: 163379
Model#: 133044315
Brand: Weil-McLain
$9,225.00
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Floor Mounted, Cast Iron Boiler with Single Stage Gas Valve. Ships Disassembled. Ratings: 350K BTU Gross Input, 294K BTU DOE Capacity, 256K BTU Net IBR Capacity.
Item#: 163380
Model#: 133041315
Brand: Weil-McLain
$8,541.00
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Floor Mounted, Cast Iron Boiler with Single Stage Gas Valve. Ships Disassembled. Ratings: 400K BTU Gross Input, 324K BTU DOE Capacity, 243K BTU Net IBR Capacity.
Item#: 163381
Model#: 133044310
Brand: Weil-McLain
$9,225.00
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Factory-Direct
Floor Mounted, Cast Iron Boiler with Single Stage Gas Valve. Ships Disassembled. Ratings: 400K BTU Gross Input, 336K BTU DOE Capacity, 292K BTU Net IBR Capacity.
Item#: 163382
Model#: 133041310
Brand: Weil-McLain
$8,541.00
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Factory-Direct
Floor Mounted, Cast Iron Boiler with Single Stage Gas Valve. Ships Disassembled. Ratings: 520K BTU Gross Input, 421K BTU DOE Capacity, 316K BTU Net IBR Capacity.
Item#: 163383
Model#: 133054310
Brand: Weil-McLain
$10,621.00
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Factory-Direct