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Weil-McLain has been producing durable, American-made boilers for over a century. Their lineup of boilers spans a massive range of capacities and efficiencies with gas-fired and oil-fired options. Shop now for Weil-McLain.
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Weil-McLain - 50% Off Select AquaBalance Series 1 Boilers
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Model Number 381800476-SD is a Hot Seller
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Weil-McLain EG - 6" - Replacement Vent Damper (Scratch & Dent)
Model: 381800476-SD
Weil-McLain - 6" - Replacement Vent Damper - For Weil-McLain (P)EG-40 and (P)EG-45 Boilers - MPN: 381800476
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Scratch & Dent
$124.48
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$248.96
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Model Number 383900075-SD is a Hot Seller
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Weil-McLain 4" - Concentric Vent Kit - PVC (Scratch & Dent)
Model: 383900075-SD
Weil-McLain - 4" - Concentric Vent Kit - PVC - For Weil-McLain EVG 220, EVG 299, and EVG 399 Hot Water Boilers - MPN: 383900075
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$131.71
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$263.42
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Model Number 383100020 is the Number 1 Seller
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Weil-McLain AquaBalance™ WMB-120C - 109K BTU - 92.2% AFUE - Combi Gas Boiler - Direct Vent
Model: 383100020
Wall Mounted, Condensing Combi Boiler with Modulating Gas Valve. Ships Packaged. Ratings: 120K BTU Gross Input, 109K BTU DOE Capacity, 95K BTU Net IBR Capacity. Includes Circulator.
18% Buy This
5.0 out of 55.0 out of 55.0 out of 55.0 out of 55.0 out of 5(9)
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Model 383100020 is a Closeout
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On Sale Ends 10/31
$1,099.50
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$2,199.00
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Model Number 383100025 is the Number 2 Seller
Learn More About 383100025
Weil-McLain AquaBalance™ WMB-120 - 109K BTU - 92.2% AFUE - Hot Water Gas Boiler - Direct Vent
Model: 383100025
Wall Mounted, Condensing Boiler with Modulating Gas Valve. Ships Packaged. Ratings: 120K BTU Gross Input, 109K BTU DOE Capacity, 95K BTU Net IBR Capacity.
9% Buy This
5.0 out of 55.0 out of 55.0 out of 55.0 out of 55.0 out of 5(9)
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Model 383100025 is a Closeout
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On Sale Ends 10/31
$974.50
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$1,949.00
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Model Number 640000083 is the Number 3 Seller
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Weil-McLain AquaBalance™ - NG to LP - Gas Conversion Kit - For WMB-155/WMB-155C
Model: 640000083
Weil-McLain - Natural Gas to Liquid Propane - Gas Conversion Kit - For Weil-McLain AquaBalance
6% Buy This
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$99.00
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Model Number 383500350 is the Number 4 Seller
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Weil-McLain 3" - Concentric Vent Kit - PVC
Model: 383500350
Weil-McLain - 3" - Concentric Vent Kit - PVC - For Weil-McLain WM97+, ECO, GV90+, Ultra 80, Ultra 105, and Ultra 155 Hot Water Boilers - MPN: 383500350
6% Buy This
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$83.95
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Model Number 381357804 is the Number 5 Seller
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Model 381357804 is a Recommended Product
Weil-McLain CGa-4-PIDN - 88K BTU - 84.0% AFUE - Hot Water Gas Boiler - Chimney Vent
Model: 381357804
Floor Mounted, Cast Iron Boiler with Single Stage Gas Valve. Ships Packaged. Ratings: 105K BTU Gross Input, 88K BTU DOE Capacity, 77K BTU Net IBR Capacity. Includes Circulator.
4% Buy This
5.0 out of 55.0 out of 55.0 out of 55.0 out of 55.0 out of 5(28)
Q&A (3)
$1,818.81
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Learn More About 381357806
Model 381357806 is a Recommended Product
Weil-McLain CGa-5-PIDN - 117K BTU - 83.5% AFUE - Hot Water Gas Boiler - Chimney Vent
Model: 381357806
Floor Mounted, Cast Iron Boiler with Single Stage Gas Valve. Ships Packaged. Ratings: 140K BTU Gross Input, 117K BTU DOE Capacity, 102K BTU Net IBR Capacity. Includes Circulator.
3% Buy This
5.0 out of 55.0 out of 55.0 out of 55.0 out of 55.0 out of 5(32)
Q&A (3)
$2,034.51
In-Stock
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Learn More About 381357808
Model 381357808 is a Recommended Product
Weil-McLain CGa-6-PIDN - 146K BTU - 83.2% AFUE - Hot Water Gas Boiler - Chimney Vent
Model: 381357808
Floor Mounted, Cast Iron Boiler with Single Stage Gas Valve. Ships Packaged. Ratings: 175K BTU Gross Input, 146K BTU DOE Capacity, 127K BTU Net IBR Capacity. Includes Circulator.
3% Buy This
5.0 out of 55.0 out of 55.0 out of 55.0 out of 55.0 out of 5(27)
Q&A (2)
$2,328.91
Only 5 In-Stock
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Learn More About 383100010
Weil-McLain AquaBalance™ WMB-80C - 73K BTU - 92.4% AFUE - Combi Gas Boiler - Direct Vent
Model: 383100010
Wall Mounted, Condensing Combi Boiler with Modulating Gas Valve. Ships Packaged. Ratings: 80K BTU Gross Input, 73K BTU DOE Capacity, 63K BTU Net IBR Capacity. Includes Circulator.
3% Buy This
5.0 out of 55.0 out of 55.0 out of 55.0 out of 55.0 out of 5(10)
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Model 383100010 is a Closeout
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On Sale Ends 10/31
$1,054.50
Was 
$2,109.00
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Learn More About 383500397
Weil-McLain 3" - Sidewall Vent Termination Kit - PVC
Model: 383500397
Weil-McLain - 3" - Sidewall Vent Termination Kit - PVC - For Weil-McLain ECO, GV90+, WM97+, Ultra 80, Ultra 105, and Ultra 155 Hot Water Boilers - MPN: 383500397
3% Buy This
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$53.75
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Learn More About 383500631
Weil-McLain Condensate Neutralizer Kit
Model: 383500631
Weil-McLain - Condensate Neutralizer Kit - For Weil-McLain Ultra, AquaBalance, WM97+, ECO, and GV90+ Hot Water Boilers - MPN: 383500631
3% Buy This
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$58.95
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Learn More About 381357832
Model 381357832 is a Recommended Product
Weil-McLain CGa-4-PIDL - 88K BTU - 84.0% AFUE - Hot Water Propane Boiler - Chimney Vent
Model: 381357832
Floor Mounted, Cast Iron Boiler with Single Stage Gas Valve. Ships Packaged. Ratings: 105K BTU Gross Input, 88K BTU DOE Capacity, 77K BTU Net IBR Capacity. Includes Circulator.
2% Buy This
5.0 out of 55.0 out of 55.0 out of 55.0 out of 55.0 out of 5(25)
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$1,821.56
Factory-Direct
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Learn More About 633600001
Weil-McLain Aqua Plus 45 - 39.9 Gal. - Indirect Water Heater
Model: 633600001
2% Buy This
5.0 out of 55.0 out of 55.0 out of 55.0 out of 55.0 out of 5(9)
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$1,125.00
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Learn More About 640000024
Weil-McLain Williamson-Thermoflo Freestyle - NG to LP - Gas Conversion Kit - For FS-80 and FS-80 COMBI
Model: 640000024
Weil-McClain - Natural Gas to Liquid Propane - Gas Conversion Kit - For Williamson-Thermoflo FS-80 and FS-80 COMBI Hot Water Boilers - MPN: 640000024
2% Buy This
5.0 out of 55.0 out of 55.0 out of 55.0 out of 55.0 out of 5(1)
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$89.00
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Learn More About 386700396
Weil-McLain Oil Burner for GO-3 - Beckett AFG - 0.95 GPH - Chimney Vent
Model: 386700396
1% Buy This
5.0 out of 55.0 out of 55.0 out of 55.0 out of 55.0 out of 5(2)
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$426.00
In-Stock
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Learn More About 381357866
Model 381357866 is a Recommended Product
Weil-McLain CGi-6-PIN - 140K BTU - 83.3% AFUE - Hot Water Gas Boiler - Power Vent
Model: 381357866
Floor Mounted, Cast Iron Boiler with Single Stage Gas Valve. Ships Packaged. Ratings: 167K BTU Gross Input, 140K BTU DOE Capacity, 122K BTU Net IBR Capacity. Includes Circulator.
1% Buy This
5.0 out of 55.0 out of 55.0 out of 55.0 out of 55.0 out of 5(14)
Q&A (2)
$2,530.41
In-Stock
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Learn More About 381357943
Model 381357943 is a Recommended Product
Weil-McLain CGi-4-PIL - 76K BTU - 85.0% AFUE - Hot Water Propane Boiler - Power Vent
Model: 381357943
Floor Mounted, Cast Iron Boiler with Single Stage Gas Valve. Ships Packaged. Ratings: 90K BTU Gross Input, 76K BTU DOE Capacity, 66K BTU Net IBR Capacity. Includes Circulator.
1% Buy This
5.0 out of 55.0 out of 55.0 out of 55.0 out of 55.0 out of 5(9)
Q&A (1)
$2,059.00
Factory-Direct
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Learn More About 381357810
Model 381357810 is a Recommended Product
Weil-McLain CGa-7-PIDN - 175K BTU - 83.0% AFUE - Hot Water Gas Boiler - Chimney Vent
Model: 381357810
Floor Mounted, Cast Iron Boiler with Single Stage Gas Valve. Ships Packaged. Ratings: 210K BTU Gross Input, 175K BTU DOE Capacity, 152K BTU Net IBR Capacity. Includes Circulator.
1% Buy This
5.0 out of 55.0 out of 55.0 out of 55.0 out of 55.0 out of 5(29)
Q&A (3)
$2,583.38
In-Stock
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Learn More About 381357802
Model 381357802 is a Recommended Product
Weil-McLain CGa-3-PIDN - 59K BTU - 84.0% AFUE - Hot Water Gas Boiler - Chimney Vent
Model: 381357802
Floor Mounted, Cast Iron Boiler with Single Stage Gas Valve. Ships Packaged. Ratings: 70K BTU Gross Input, 59K BTU DOE Capacity, 51K BTU Net IBR Capacity. Includes Circulator.
1% Buy This
5.0 out of 55.0 out of 55.0 out of 55.0 out of 55.0 out of 5(28)
Q&A (3)
$1,670.52
In-Stock
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Learn More About 383100050
Weil-McLain AquaBalance™ AB-155-C - 144K BTU - 95% AFUE - Combi Gas Boiler - Direct Vent
Model: 383100050
Wall Mounted, Condensing Combi Boiler with Modulating Gas Valve. Ships Packaged. Ratings: 155K BTU Gross Input, 144K BTU DOE Capacity, 125K BTU Net IBR Capacity. Includes Circulator.
1% Buy This
5.0 out of 55.0 out of 55.0 out of 55.0 out of 55.0 out of 5(7)
Q&A (1)
$2,419.00
In-Stock
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Learn More About 381357800
Model 381357800 is a Recommended Product
Weil-McLain CGa-25-PIDN - 44K BTU - 84.0% AFUE - Hot Water Gas Boiler - Chimney Vent
Model: 381357800
Floor Mounted, Cast Iron Boiler with Single Stage Gas Valve. Ships Packaged. Ratings: 52K BTU Gross Input, 44K BTU DOE Capacity, 38K BTU Net IBR Capacity. Includes Circulator.
1% Buy This
5.0 out of 55.0 out of 55.0 out of 55.0 out of 55.0 out of 5(27)
Q&A (3)
$1,512.11
Only 4 In-Stock
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Learn More About 381357936
Weil-McLain CGt-5-PIN - 109K BTU - 82.1% AFUE - Hot Water Gas Boiler - Power Vent
Model: 381357936
Floor Mounted, Cast Iron Boiler with Single Stage Gas Valve. Ships Packaged. Ratings: 133K BTU Gross Input, 109K BTU DOE Capacity, 95K BTU Net IBR Capacity. Includes Circulator.
1% Buy This
4.8 out of 54.8 out of 54.8 out of 54.8 out of 54.8 out of 5(6)
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$2,676.84
In-Stock
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Learn More About 386700832
Weil-McLain P-WTGO-3 - 115K BTU - 85.3% AFUE - Hot Water Oil Boiler - Chimney Vent - Burner Sold Separately
Model: 386700832
Floor Mounted, Cast Iron Boiler. Ships Packaged. Ratings: 0.95 GPH Gross Input, 115K BTU DOE Capacity, 100K BTU Net IBR Capacity. Includes Circulator.
1% Buy This
4.8 out of 54.8 out of 54.8 out of 54.8 out of 54.8 out of 5(5)
Q&A (1)
$2,366.60
In-Stock
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