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Weil-McLain Cast Iron Boilers

87 Products
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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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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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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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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.
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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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Price
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Efficiency (%)
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Product Height (Inches)
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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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$4,065.00
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$3,219.00
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$3,745.00
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$4,738.00
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$4,746.00
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$3,870.00
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$4,860.00
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$3,735.00
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$4,858.00
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$5,339.00
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$3,607.00
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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
$9,589.00
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Factory-Direct
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
$8,922.00
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Factory-Direct
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
$9,715.00
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*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.
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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
$9,048.00
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Free Lift Gate
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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
$11,108.00
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Factory-Direct
Floor Mounted, Cast Iron Boiler with Single Stage Gas Valve. Ships Disassembled. Ratings: 520K BTU Gross Input, 436K BTU DOE Capacity, 379K BTU Net IBR Capacity.
Item#: 163384
Model#: 133051310
Brand: Weil-McLain
$10,441.00
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Factory-Direct
Floor Mounted, Cast Iron Boiler with Single Stage Gas Valve. Ships Disassembled. Ratings: 650K BTU Gross Input, 526K BTU DOE Capacity, 395K BTU Net IBR Capacity.
Item#: 163385
Model#: 133064310
Brand: Weil-McLain
$13,181.00
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Factory-Direct
Floor Mounted, Cast Iron Boiler with Single Stage Gas Valve. Ships Disassembled. Ratings: 650K BTU Gross Input, 546K BTU DOE Capacity, 475K BTU Net IBR Capacity.
Item#: 163386
Model#: 133061310
Brand: Weil-McLain
$12,534.00
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Factory-Direct
Floor Mounted, Cast Iron Boiler with Single Stage Gas Valve. Ships Disassembled. Ratings: 780K BTU Gross Input, 631K BTU DOE Capacity, 473K BTU Net IBR Capacity.
Item#: 163387
Model#: 133074310
Brand: Weil-McLain
$14,823.00
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Free Lift Gate
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Factory-Direct
Floor Mounted, Cast Iron Boiler with Single Stage Gas Valve. Ships Disassembled. Ratings: 780K BTU Gross Input, 655K BTU DOE Capacity, 570K BTU Net IBR Capacity.
Item#: 163388
Model#: 133071310
Brand: Weil-McLain
$14,177.00
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Factory-Direct
Floor Mounted, Cast Iron Boiler with Single Stage Gas Valve. Ships Disassembled. Ratings: 910K BTU Gross Input, 737K BTU DOE Capacity, 553K BTU Net IBR Capacity.
Item#: 163389
Model#: 133084310
Brand: Weil-McLain
$16,716.00
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Factory-Direct
Floor Mounted, Cast Iron Boiler with Single Stage Gas Valve. Ships Disassembled. Ratings: 910K BTU Gross Input, 764K BTU DOE Capacity, 664K BTU Net IBR Capacity.
Item#: 163390
Model#: 133081310
Brand: Weil-McLain
$16,069.00
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Factory-Direct
Floor Mounted, Cast Iron Boiler with Single Stage Gas Valve. Ships Disassembled. Ratings: 1040K BTU Gross Input, 842K BTU DOE Capacity, 632K BTU Net IBR Capacity.
Item#: 163391
Model#: 133094310
Brand: Weil-McLain
$18,272.00
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Factory-Direct
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