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Learn More About Weil-McLain 386701014acw-sale-badge
Weil-McLain WGO-4 - 122K BTU - 86.2% AFUE - Hot Water Oil Boiler with Taco 007 Circulator - Burner Sold Separately
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Item#: 116029
Model#: 386701014
Brand: Weil-McLain
$3,599.00
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Weil-McLain WGO-4 - 122K BTU - 86.2% AFUE - Hot Water Oil Boiler with Taco 007 Circulator - Burner Sold Separately
Learn More About Weil-McLain 386701027acw-sale-badge
Weil-McLain WTGO-3 - 98K BTU - 86.2% AFUE - Hot Water Oil Boiler - Burner Sold Separately
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Item#: 116426
Model#: 386701027
Brand: Weil-McLain
$3,478.63
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Weil-McLain WTGO-3 - 98K BTU - 86.2% AFUE - Hot Water Oil Boiler - Burner Sold Separately
Learn More About Weil-McLain 383900174acw-sale-badge
Weil-McLain ECO® Tec 150-C Series 2 - 150K BTU - 95% AFUE - Combi Gas Boiler - Direct Vent
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Wall Mounted, Condensing Boiler with Modulating Gas Valve. Ships Packaged. Ratings: 150K BTU Gross Input, 139K BTU DOE Capacity, 121K BTU Net IBR Capacity. Includes Circulator.
Item#: 124140
Model#: 383900174
Brand: Weil-McLain
$3,974.76
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Weil-McLain ECO® Tec 150-C Series 2 - 150K BTU - 95% AFUE - Combi Gas Boiler - Direct Vent
Learn More About Electro Industries EMB-R1-05-240-1acw-sale-badge
Electro Industries EMB-R1-5 - 5 kW - 17K BTU - Hot Water Electric Boiler - 240V
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Item#: 149022
Model#: EMB-R1-05-240-1
Brand: Electro Industries
$1,507.50
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Electro Industries EMB-R1-5 - 5 kW - 17K BTU - Hot Water Electric Boiler - 240V
Learn More About Electro Industries EMB-R1-09-240-1acw-sale-badge
Electro Industries EMB Mini-Boiler™ - 9 kW - 30.7K BTU - Hot Water Electric Boiler - 240V - 1 Phase - Staging
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Item#: 150631
Model#: EMB-R1-09-240-1
Brand: Electro Industries
$1,579.50
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Electro Industries EMB Mini-Boiler™ - 9 kW - 30.7K BTU - Hot Water Electric Boiler - 240V - 1 Phase - Staging
Learn More About Electro Industries EMB-M2-07-240-1acw-sale-badge
Electro Industries EMB Mini-Boiler™ - 7 kW - 23.8K BTU - Hot Water Electric Boiler - 208/240V - 1 Phase - Modulating
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Item#: 150634
Model#: EMB-M2-07-240-1
Brand: Electro Industries
$1,804.50
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Electro Industries EMB Mini-Boiler™ - 7 kW - 23.8K BTU - Hot Water Electric Boiler - 208/240V - 1 Phase - Modulating
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Electro Industries EMB Mini-Boiler™ - 9 kW - 30.7K BTU - Hot Water Electric Boiler - 208/240V - 1 Phase - Modulating
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Item#: 150635
Model#: EMB-M2-09-240-1
Brand: Electro Industries
$1,840.50
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Electro Industries EMB Mini-Boiler™ - 9 kW - 30.7K BTU - Hot Water Electric Boiler - 208/240V - 1 Phase - Modulating
Learn More About Buderus G115WS/3acw-sale-badge
Buderus 85K 87.0% Hot Water Oil Boiler Chimney Vent For G115WS/3
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Floor Mounted, Cast Iron Boiler. Ships Packaged. Ratings: 0.70 GPH Gross Input, 85K BTU DOE Capacity, 74K BTU Net IBR Capacity.
Item#: 37410
Model#: G115WS/3
Brand: Buderus
$1,847.00
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Buderus 85K 87.0% Hot Water Oil Boiler Chimney Vent For G115WS/3
Learn More About Crown Boiler Co. AWR140BNST3PSUacw-sale-badge
Crown Boiler Aruba 5 - 117K BTU - 84% AFUE - Hot Water Gas Boiler - Chimney Vent
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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 Taco Circulator.
Item#: 103095
Model#: AWR140BNST3PSU
Brand: Crown Boiler Co.
$2,627.00
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Crown Boiler Aruba 5 - 117K BTU - 84% AFUE - Hot Water Gas Boiler - Chimney Vent
Learn More About Electro Industries EB-MS-20acw-sale-badge
Electro Industries 68K BTU Electric Hot Water Boiler 20 kW 240V 1 Ph
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Wall Mounted Boiler with Four Stage Operation. Ships Packaged.
Item#: 18280
Model#: EB-MS-20
Brand: Electro Industries
$2,583.00
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Electro Industries 68K BTU Electric Hot Water Boiler 20 kW 240V 1 Ph
Learn More About Crown Boiler Co. BSI138ENPZZPSUacw-sale-badge
Crown Boiler Co. 82% AFUE 85k BTU Steam NG Boiler Chimney Vent
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Floor Mounted, Cast Iron Boiler with Single Stage Gas Valve. Ships Packaged. Ratings: 138K BTU Gross Input, 113K BTU DOE Capacity, 85K BTU Net IBR Capacity.
Item#: 24033
Model#: BSI138ENPZZPSU
Brand: Crown Boiler Co.
$3,400.00
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Crown Boiler Co. 82% AFUE 85k BTU Steam NG Boiler Chimney Vent
Learn More About Buderus G215/5acw-sale-badge
Buderus 207K 86.1% Hot Water Oil Boiler Chimney Vent For G215/5
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Floor Mounted, Cast Iron Boiler. Ships Disassembled. Ratings: 1.70 GPH Gross Input, 207K BTU DOE Capacity, 180K BTU Net IBR Capacity.
Item#: 37473
Model#: G215/5
Brand: Buderus
$3,286.00
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Buderus 207K 86.1% Hot Water Oil Boiler Chimney Vent For G215/5
Learn More About Burnham SIN7LPI-LE2acw-sale-badge
Burnham IN7 - 130K BTU - 82.1% AFUE - Steam Propane Boiler - Chimney Vent - Semi-Packaged - Trim Sold Separately
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Floor Mounted, Cast Iron Boiler with Single Stage Gas Valve. Ships Disassembled. Ratings: 210K BTU Gross Input, 173K BTU DOE Capacity, 130K BTU Net IBR Capacity.
Item#: 37821
Model#: SIN7LPI-LE2
Brand: Burnham
$4,672.00
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Burnham IN7 - 130K BTU - 82.1% AFUE - Steam Propane Boiler - Chimney Vent - Semi-Packaged - Trim Sold Separately
Learn More About Burnham KIN9LNI-LE2acw-sale-badge
Burnham IN9 - 174K BTU - 82.2% AFUE - Steam Gas Boiler - Chimney Vent - Trim Sold Separately
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Floor Mounted, Cast Iron Boiler with Single Stage Gas Valve. Ships Disassembled. Ratings: 280K BTU Gross Input, 231K BTU DOE Capacity, 174K BTU Net IBR Capacity.
Item#: 37826
Model#: KIN9LNI-LE2
Brand: Burnham
$5,900.83
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Burnham IN9 - 174K BTU - 82.2% AFUE - Steam Gas Boiler - Chimney Vent - Trim Sold Separately
Learn More About Burnham MPO-IQ147-TBacw-sale-badge
Burnham MPO-IQ147 129K BTU 87.0% Hot Water Oil Boiler Chimney Vent
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Floor Mounted, Cast Iron Boiler. Ships Packaged. Ratings: 1.05 GPH Gross Input, 129K BTU DOE Capacity, 112K BTU Net IBR Capacity. Includes Circulator.
Item#: 37915
Model#: MPO-IQ147-TB
Brand: Burnham
$3,467.23
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Burnham MPO-IQ147 129K BTU 87.0% Hot Water Oil Boiler Chimney Vent
Learn More About Weil-McLain GV90+4acw-sale-badge
Weil-McLain GV90+4 97K BTU 91.2% AFUE Hot Water Gas Boiler Direct Vent
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Floor Mounted, Cast Iron Condensing Boiler with Single Stage Gas Valve. Ships Packaged. Ratings: 105K BTU Gross Input, 97K BTU DOE Capacity, 84K BTU Net IBR Capacity. Includes Circulator.
Item#: 49647
Model#: GV90+4
Brand: Weil-McLain
$4,349.00
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Weil-McLain GV90+4 97K BTU 91.2% AFUE Hot Water Gas Boiler Direct Vent
Learn More About Weil-McLain GV90+6acw-sale-badge
Weil-McLain GV90+6 161K BTU 91.0% AFUE Hot Water Gas Boiler Direct
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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.
Item#: 49649
Model#: GV90+6
Brand: Weil-McLain
$5,666.49
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Weil-McLain GV90+6 161K BTU 91.0% AFUE Hot Water Gas Boiler Direct
Learn More About Electro Industries EB-CX-31acw-sale-badge
Electro Industries 108K BTU Electric Hot Water Boiler 31.5 kW 240V 1Ph
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Wall Mounted Boiler with Seven Stage Operation. Ships Packaged. Includes Outdoor Reset Capability.
Item#: 68356
Model#: EB-CX-31
Brand: Electro Industries
$4,540.50
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Electro Industries 108K BTU Electric Hot Water Boiler 31.5 kW 240V 1Ph
Learn More About Electro Industries EB-WX-27acw-sale-badge
Electro Industries 92K BTU Electric Hot Water Boiler 27 kW 240V 1 Ph
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Wall Mounted Boiler with Modulating Operation. Ships Packaged. Includes Outdoor Reset Capability.
Item#: 68432
Model#: EB-WX-27
Brand: Electro Industries
$3,906.00
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Electro Industries 92K BTU Electric Hot Water Boiler 27 kW 240V 1 Ph
Learn More About Bosch Thermotechnology ZBR21-3acw-sale-badge
Bosch 71,000 BTU 95% AFUE Condensing Boiler NG/LP Greenstar 79
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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.
Item#: 68735
Model#: ZBR21-3
Brand: Bosch Thermotechnology
$2,624.00
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Bosch 71,000 BTU 95% AFUE Condensing Boiler NG/LP Greenstar 79
Learn More About Weil-McLain 383500734acw-sale-badge
Weil-McLain 94K BTU 94% AFUE Hot Water Gas Boiler Direct Vent
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Floor Mounted, Condensing Boiler with Modulating Gas Valve. Ships Packaged. Ratings: 105K BTU Gross Input, 94K BTU DOE Capacity, 81K BTU Net IBR Capacity. Includes Circulator.
Item#: 79376
Model#: 383500734
Brand: Weil-McLain
$3,809.00
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Weil-McLain 94K BTU 94% AFUE Hot Water Gas Boiler Direct Vent
Learn More About Weil-McLain 383500735acw-sale-badge
Weil-McLain Ultra 155 139K 94% Hot Water Gas Boiler Direct Vent
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Floor Mounted, Condensing Boiler with Modulating Gas Valve. Ships Packaged. Ratings: 155K BTU Gross Input, 139K BTU DOE Capacity, 123K BTU Net IBR Capacity. Includes Circulator.
Item#: 79377
Model#: 383500735
Brand: Weil-McLain
$4,346.00
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Weil-McLain Ultra 155 139K 94% Hot Water Gas Boiler Direct Vent
Learn More About Weil-McLain 383500736acw-sale-badge
Weil-McLain Ultra 230 207K 94.1% Hot Water Gas Boiler Direct Vent
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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.
Item#: 79378
Model#: 383500736
Brand: Weil-McLain
$5,529.00
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Weil-McLain Ultra 230 207K 94.1% Hot Water Gas Boiler Direct Vent
Learn More About Triangle Tube PEA110acw-sale-badge
Triangle Tube 99K BTU 95% AFUE Prestige Gas Boiler & Hot Water Heater
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Wall Mounted, Condensing Boiler with Modulating Gas Valve. Ships Packaged. Ratings: 110K BTU Gross Input, 99K BTU DOE Capacity, 86K BTU Net IBR Capacity. Includes Circulator.
Item#: 79466
Model#: PEA110
Brand: Triangle Tube
$5,013.00
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Triangle Tube 99K BTU 95% AFUE Prestige Gas Boiler & Hot Water Heater
Tools & Articles
How to Pick a Residential Boiler
How to Pick a Residential Boiler
Home Boiler System Overview

Boilers at ACWholesalers


A boiler is a central heating system that uses hot water or steam, which is transported through a piping system and to radiators, to heat a home.

One advantage of choosing a residential boiler system is the even distribution of heat. Hot water and steam transfer heat more effectively than air by keeping the heat closer to the ground. Another advantage is efficiency. Boilers require less energy to heat a home than forced-air systems because hot water and steam hold heat longer than air.

Residential boilers also provide flexibility by allowing for zoning different areas of the home. This way, each zone can be kept at its own temperature, maximizing comfort and reducing energy costs for areas where additional heat isn't needed.

Choosing a Residential Boiler System


Medium
A boiler can transfer heat using hot water or steam as its medium. These mediums are not interchangeable, so it is important to know what the existing pipe system is designed for.

Fuel Type
A residential boiler system is made to use one of the following as its fuel source: natural gas, liquid propane, oil, or electricity.

Vent Type
There are three venting options for a residential boiler; direct vent, chimney vent, and power vent. Each type has a different method of removing gasses and is chosen based on the home's construction and desired efficiency of the new system.

Net I=B=R Capacity (BTU) or DOE Heating Capacity (BTU)
Steam boilers are often sized based on their Net I=B=R capacity. This BTU amount factors in piping loss, combustion efficiency, and an extra pickup factor. DOE (Department of Energy) heating capacity also factors in combustion efficiency and is commonly used to size hot water boilers.

AFUE (%)
A boiler's AFUE (Annual Fuel Utilization Efficiency) percentage describes its efficiency. The higher the percentage, the less energy is wasted and the more efficient the model is.