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Boilers warm a home by using a fuel source to heat water, which is then distributed as liquid or steam through a piping system. The benefits of boilers include evenly-distributed heat, quiet operation, and no airborne particles. Armed with our buyer's guide, expert support and customer reviews, you can feel confident in finding the right boiler for your needs.
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Learn More About Noritz NRCB180DV-NG
Noritz NRCB180 - 92K BTU - 95% AFUE - Combi Gas Boiler - Direct Vent
Model: NRCB180DV-NG
Wall Mounted, Condensing Combi Boiler with Modulating Gas Valve. Ships Packaged. Ratings: 100K BTU Gross Input, 92K BTU DOE Capacity, 80K BTU Net IBR Capacity. Includes Circulator.
4.9 out of 54.9 out of 54.9 out of 54.9 out of 54.9 out of 5(9)
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On Sale Ends 07/14
$1,977.08
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$2,149.00
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Learn More About Weil-McLain 382200613
Weil-McLain GV90+6 - 161K BTU - 91.0% AFUE - Hot Water Gas Boiler - Direct Vent
Model: 382200613
Floor Mounted, Cast Iron Condensing Boiler with Single Stage Gas Valve. Ships Packaged. Ratings: 175K BTU Gross Input, 161K BTU DOE Capacity, 140K BTU Net IBR Capacity. Includes Circulator.
4.6 out of 54.6 out of 54.6 out of 54.6 out of 54.6 out of 5(7)
Q&A (2)
$4,265.00
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Learn More About Buderus G115WS/4
Model G115WS/4 is a Recommended Product
Buderus G115WS/4 - 109K BTU - 87.0% AFUE - Hot Water Oil Boiler - Chimney or Direct Vent - Burner Sold Separately
Model: G115WS/4
Floor Mounted, Cast Iron Boiler. Ships Packaged. Ratings: 0.90 GPH Gross Input, 109K BTU DOE Capacity, 95K BTU Net IBR Capacity.
5.0 out of 55.0 out of 55.0 out of 55.0 out of 55.0 out of 5(6)
Q&A (1)
$1,829.00
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Learn More About Bosch Thermotechnology ZWB42-3
Model ZWB42-3 is a Recommended Product
Bosch Greenstar Combi 151 - 134K BTU - 95.0% AFUE - Combi Gas Boiler - Direct Vent
Model: ZWB42-3
Wall Mounted, Condensing Boiler with Modulating Gas Valve. Ships Packaged. Ratings: 152K BTU Gross Input, 134K BTU DOE Capacity, 117K BTU Net IBR Capacity. Includes Circulator.
5.0 out of 55.0 out of 55.0 out of 55.0 out of 55.0 out of 5(5)
Q&A (2)
$3,349.00
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Learn More About Buderus G115WS/5
Model G115WS/5 is a Recommended Product
Buderus G115WS/5 - 136K BTU - 87.0% AFUE - Hot Water Oil Boiler - Chimney or Direct Vent - Burner Sold Separately
Model: G115WS/5
Floor Mounted, Cast Iron Boiler. Ships Packaged. Ratings: 1.10 GPH Gross Input, 136K BTU DOE Capacity, 119K BTU Net IBR Capacity.
5.0 out of 55.0 out of 55.0 out of 55.0 out of 55.0 out of 5(5)
Q&A (1)
$1,989.00
Only 1 In-Stock
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Learn More About Weil-McLain 386700830
Weil-McLain P-WGO-5 - 175K BTU - 85.0% AFUE - Hot Water Oil Boiler - Chimney Vent - Burner Sold Separately
Model: 386700830
Floor Mounted, Cast Iron Boiler. Ships Packaged. Ratings: 1.45 GPH Gross Input, 175K BTU DOE Capacity, 152K BTU Net IBR Capacity. Includes Circulator.
4.6 out of 54.6 out of 54.6 out of 54.6 out of 54.6 out of 5(5)
$2,837.10
Only 2 In-Stock
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Learn More About Burnham KIN3LPI-LE2
Model KIN3LPI-LE2 is a Recommended Product
Burnham IN3 - 38K BTU - 81.9% AFUE - Steam Propane Boiler - Chimney Vent - Trim Sold Separately
Model: KIN3LPI-LE2
Floor Mounted, Cast Iron Boiler with Single Stage Gas Valve. Ships Disassembled. Ratings: 62K BTU Gross Input, 51K BTU DOE Capacity, 38K BTU Net IBR Capacity.
5.0 out of 55.0 out of 55.0 out of 55.0 out of 55.0 out of 5(4)
Q&A (2)
$1,865.00
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Learn More About New Yorker CL5-280-WN-TBB
Model CL5-280-WN-TBB is a Recommended Product
New Yorker CL5-280 - 238K BTU - 84.7% AFUE - Hot Water Oil Boiler - Chimney Vent
Model: CL5-280-WN-TBB
Floor Mounted, Cast Iron Boiler. Ships Packaged. Ratings: 2.0 GPH Gross Input, 238K BTU DOE Capacity, 207K BTU Net IBR Capacity. Includes Circulator.
5.0 out of 55.0 out of 55.0 out of 55.0 out of 55.0 out of 5(4)
$3,064.00
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Learn More About Electro Industries EB-CX-36-48
Electro Industries EB-CX-36-48 - 36 kW - 123K BTU - Hot Water Electric Boiler - 480V - 3 Phase
Model: EB-CX-36-48
Wall Mounted Boiler with Six Stage Operation. Ships Packaged. Includes Outdoor Reset Capability.
5.0 out of 55.0 out of 55.0 out of 55.0 out of 55.0 out of 5(4)
$3,799.00
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Learn More About Weil-McLain 386700829
Weil-McLain P-WGO-4 - 145K BTU - 85.0% AFUE - Hot Water Oil Boiler - Chimney Vent - Burner Sold Separately
Model: 386700829
Floor Mounted, Cast Iron Boiler. Ships Packaged. Ratings: 1.20 GPH Gross Input, 145K BTU DOE Capacity, 126K BTU Net IBR Capacity. Includes Circulator.
4.8 out of 54.8 out of 54.8 out of 54.8 out of 54.8 out of 5(4)
$2,471.90
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Learn More About Electro Industries EB-S-18
Electro Industries EB-S-18 - 18 kW - 61K BTU - Hot Water Electric Boiler - 240V - 1 Phase
Model: EB-S-18
Wall Mounted Boiler with Four Stage Operation. Ships Packaged.
4.8 out of 54.8 out of 54.8 out of 54.8 out of 54.8 out of 5(4)
Q&A (1)
$1,981.00
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Learn More About Electro Industries EB-CX-31
Electro Industries EB-CX-31 - 31.5 kW - 108K BTU - Hot Water Electric Boiler - 240V - 1 Phase
Model: EB-CX-31
Wall Mounted Boiler with Seven Stage Operation. Ships Packaged. Includes Outdoor Reset Capability.
5.0 out of 55.0 out of 55.0 out of 55.0 out of 55.0 out of 5(3)
$2,923.00
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Learn More About Electro Industries EB-MS-10
Electro Industries EB-MS-10 - 10 kW - 34K BTU - Hot Water Electric Boiler - 240V - 1 Phase
Model: EB-MS-10
Wall Mounted Boiler with Two Stage Operation. Ships Packaged.
5.0 out of 55.0 out of 55.0 out of 55.0 out of 55.0 out of 5(3)
Q&A (2)
$1,390.00
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Learn More About Electro Industries EB-MX-10
Electro Industries EB-MX-10 - 10 kW - 34K BTU - Hot Water Electric Boiler - 240V - 1 Phase
Model: EB-MX-10
Wall Mounted Boiler with Modulating Operation. Ships Packaged. Includes Outdoor Reset Capability.
5.0 out of 55.0 out of 55.0 out of 55.0 out of 55.0 out of 5(3)
$1,509.00
Only 1 In-Stock
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Learn More About Electro Industries EB-MX-15
Electro Industries EB-MX-15 - 15 kW - 51K BTU - Hot Water Electric Boiler - 240V - 1 Phase
Model: EB-MX-15
Wall Mounted Boiler with Modulating Operation. Ships Packaged. Includes Outdoor Reset Capability.
5.0 out of 55.0 out of 55.0 out of 55.0 out of 55.0 out of 5(3)
$1,689.00
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Learn More About Electro Industries EB-WX-27-2
Electro Industries EB-WX-27-2 - 27 kW - 92K BTU - Hot Water Electric Boiler - 208V - 3 Phase
Model: EB-WX-27-2
Wall Mounted Boiler with Modulating Operation. Ships Packaged. Includes Outdoor Reset Capability.
5.0 out of 55.0 out of 55.0 out of 55.0 out of 55.0 out of 5(3)
Q&A (1)
$2,680.00
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Learn More About Burnham KIN11LNI-LL2
Burnham IN11 - 216K BTU - 82.5% Thermal Efficiency - Steam Gas Boiler - Chimney Vent - Trim and Damper Sold Separately
Model: KIN11LNI-LL2
Floor Mounted, Cast Iron Boiler with Single Stage Gas Valve. Ships Disassembled. Ratings: 349K BTU Gross Input, 288K BTU DOE Capacity, 216K BTU Net IBR Capacity.
5.0 out of 55.0 out of 55.0 out of 55.0 out of 55.0 out of 5(2)
Q&A (2)
$4,616.00
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Learn More About Bosch Thermotechnology ZBR21-3
Bosch Greenstar 79 - ZBR21 - 71K BTU - 95.0% AFUE - Hot Water Gas Boiler - Direct Vent
Model: ZBR21-3
Wall Mounted, Condensing Boiler with Modulating Gas Valve. Ships Packaged. Ratings: 79K BTU Gross Input, 71K BTU DOE Capacity, 62K BTU Net IBR Capacity. Includes Circulator.
5.0 out of 55.0 out of 55.0 out of 55.0 out of 55.0 out of 5(2)
Q&A (1)
$2,399.00
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Learn More About Bosch Thermotechnology ZBR35-3
Bosch Greenstar 131 - 117K BTU - 95.0% AFUE - Hot Water Gas Boiler - Direct Vent
Model: ZBR35-3
Wall Mounted, Condensing Boiler with Modulating Gas Valve. Ships Packaged. Ratings: 132K BTU Gross Input, 117K BTU DOE Capacity, 103K BTU Net IBR Capacity. Includes Circulator.
5.0 out of 55.0 out of 55.0 out of 55.0 out of 55.0 out of 5(2)
Q&A (3)
$3,319.00
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Learn More About Burnham K2-150
Burnham K2WT-150 - 141K BTU - 95.0% AFUE - Hot Water Gas Boiler - Direct Vent
Model: K2-150
Wall Mounted, Condensing Boiler with Modulating Gas Valve. Ships Packaged. Ratings: 150K BTU Gross Input, 141K BTU DOE Capacity, 123K BTU Net IBR Capacity. Includes Circulator.
5.0 out of 55.0 out of 55.0 out of 55.0 out of 55.0 out of 5(2)
Q&A (2)
$2,799.00
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Learn More About Weil-McLain 383500736
Weil-McLain Ultra 230 - 207K BTU - 94.1% AFUE - Hot Water Gas Boiler - Direct Vent
Model: 383500736
Floor Mounted, Condensing Boiler with Modulating Gas Valve. Ships Packaged. Ratings: 230K BTU Gross Input, 207K BTU DOE Capacity, 183K BTU Net IBR Capacity. Includes Circulator.
5.0 out of 55.0 out of 55.0 out of 55.0 out of 55.0 out of 5(2)
$4,199.00
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Learn More About Williamson-Thermoflo FS-120 COMBI
Williamson-Thermoflo FS-120 - 109K BTU - 92.2% AFUE - Combi Gas Boiler - Direct Vent
Model: FS-120 COMBI
Wall Mounted, Condensing Boiler with Modulating Gas Valve. Ships Packaged. Ratings: 120K BTU Gross Input, 109K BTU DOE Capacity, 94K BTU Net IBR Capacity. Includes Circulator.
3.0 out of 53.0 out of 53.0 out of 53.0 out of 53.0 out of 5(2)
Q&A (2)
$2,289.00
Was 
$2,439.00
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Learn More About New Yorker PVCG40BPI-TS
New Yorker PVCG40 - 81K BTU - 85.4% AFUE - Hot Water Propane Boiler - Power Vent
Model: PVCG40BPI-TS
Floor Mounted, Cast Iron Boiler with Single Stage Gas Valve. Ships Packaged. Ratings: 95K BTU Gross Input, 81K BTU DOE Capacity, 70K BTU Net IBR Capacity. Includes Circulator.
5.0 out of 55.0 out of 55.0 out of 55.0 out of 55.0 out of 5(1)
$2,148.00
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Learn More About Peerless MI-05-SPRK-WPC-N
Peerless MI-05 - 115K BTU - 82.0% AFUE - Hot Water Gas Boiler - Chimney Vent
Model: MI-05-SPRK-WPC-N
Floor Mounted, Cast Iron Boiler with Single Stage Gas Valve. Ships Packaged. Ratings: 140K BTU Gross Input, 115K BTU DOE Capacity, 100K BTU Net IBR Capacity.
5.0 out of 55.0 out of 55.0 out of 55.0 out of 55.0 out of 5(1)
$2,179.00
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