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Learn More About Weil-McLain 386701028acw-sale-badge
Weil-McLain WTGO-3 - 122K BTU - 86.2% AFUE - Hot Water Oil Boiler with Taco 007e Circulator - Burner Sold Separately
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Item#: 116947
Model#: 386701028
Brand: Weil-McLain
$3,487.57
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Weil-McLain WTGO-3 - 122K BTU - 86.2% AFUE - Hot Water Oil Boiler with Taco 007e Circulator - Burner Sold Separately
Learn More About Weil-McLain 386701030acw-sale-badge
Weil-McLain WTGO-5 - 147K BTU - 86.1% AFUE - Hot Water Oil Boiler with Taco 007 Circulator - Burner Sold Separately
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Item#: 116948
Model#: 386701030
Brand: Weil-McLain
$4,528.64
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Weil-McLain WTGO-5 - 147K BTU - 86.1% AFUE - Hot Water Oil Boiler with Taco 007 Circulator - Burner Sold Separately
Learn More About Weil-McLain 386701031acw-sale-badge
Weil-McLain WTGO-6 - 171K BTU - 86.1% AFUE - Hot Water Oil Boiler with Taco 007 Circulator - Burner Sold Separately
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Item#: 116949
Model#: 386701031
Brand: Weil-McLain
$5,004.00
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Weil-McLain WTGO-6 - 171K BTU - 86.1% AFUE - Hot Water Oil Boiler with Taco 007 Circulator - Burner Sold Separately
Learn More About Weil-McLain 386701032acw-sale-badge
Weil-McLain WTGO-3 - 98K BTU - 86.2% AFUE - Hot Water Oil Boiler - Burner Sold Separately
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Item#: 116950
Model#: 386701032
Brand: Weil-McLain
$3,355.81
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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 383900177acw-sale-badge
Weil-McLain ECO® Tec 110-H Series 2 - 110K BTU - 95% AFUE - Hot Water Gas Boiler - Direct Vent
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Wall Mounted, Condensing Boiler with Modulating Gas Valve. Ships Packaged. Ratings: 110K BTU Gross Input, 100K BTU DOE Capacity, 87K BTU Net IBR Capacity. Includes Circulator.
Item#: 123840
Model#: 383900177
Brand: Weil-McLain
$3,489.20
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Weil-McLain ECO® Tec 110-H Series 2 - 110K BTU - 95% AFUE - Hot Water Gas Boiler - Direct Vent
Learn More About Weil-McLain 383900173acw-sale-badge
Weil-McLain ECO® Tec 110-C Series 2 - 100K BTU - 95% AFUE - Combi Gas Boiler - Direct Vent
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Wall Mounted, Condensing Boiler with Modulating Gas Valve. Ships Packaged. Ratings: 80K BTU Gross Input, 74K BTU DOE Capacity, 64K BTU Net IBR Capacity. Includes Circulator.
Item#: 124141
Model#: 383900173
Brand: Weil-McLain
$3,732.39
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Weil-McLain ECO® Tec 110-C Series 2 - 100K BTU - 95% AFUE - Combi Gas Boiler - Direct Vent
Learn More About Weil-McLain 383900176acw-sale-badge
Weil-McLain ECO® Tec 80-H Series 2 - 80K BTU - 95% AFUE - Hot Water Gas Boiler - Direct Vent
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Wall Mounted, Condensing Boiler with Modulating Gas Valve. Ships Packaged. Ratings: 80K BTU Gross Input, 74K BTU DOE Capacity, 64K BTU Net IBR Capacity. Includes Circulator.
Item#: 124898
Model#: 383900176
Brand: Weil-McLain
$3,326.53
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Weil-McLain ECO® Tec 80-H Series 2 - 80K BTU - 95% AFUE - Hot Water Gas Boiler - Direct Vent
Learn More About Weil-McLain 383900178acw-sale-badge
Weil-McLain ECO® Tec 150-H Series 2 - 150K BTU - 95% AFUE - Hot Water 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#: 124899
Model#: 383900178
Brand: Weil-McLain
$3,732.39
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Weil-McLain ECO® Tec 150-H Series 2 - 150K BTU - 95% AFUE - Hot Water Gas Boiler - Direct Vent
Learn More About Weil-McLain 383900179acw-sale-badge
Weil-McLain ECO® Tec 199-H Series 2 - 199K BTU - 95% AFUE - Hot Water Gas Boiler - Direct Vent
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Wall Mounted, Condensing Boiler with Modulating Gas Valve. Ships Packaged. Ratings: 199K BTU Gross Input, 184K BTU DOE Capacity, 160K BTU Net IBR Capacity. Includes Circulator.
Item#: 124900
Model#: 383900179
Brand: Weil-McLain
$4,300.09
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Weil-McLain ECO® Tec 199-H Series 2 - 199K BTU - 95% AFUE - Hot Water Gas Boiler - Direct Vent
Learn More About Burnham ALTA-120-1G02acw-sale-badge
Burnham ALTA - 120K BTU - 95% AFUE - Hot Water Gas Boiler - Direct Vent
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Wall Mounted, Hot Water Gas Boiler with 2-Step NG to LP conversion included. Ratings: 120K BTU Gross Input, 112K BTU DOE Capacity, 97K Net IBR Capacity. Includes Circulator.
Item#: 124928
Model#: ALTA-120-1G02
Brand: Burnham
$2,366.00
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Burnham ALTA - 120K BTU - 95% AFUE - Hot Water 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-M2-05-240-1acw-sale-badge
Electro Industries EMB-M2-05 - 5 kW - 17K BTU - Hot Water Electric Boiler - 240V - 1 Phase
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Item#: 149194
Model#: EMB-M2-05-240-1
Brand: Electro Industries
$1,768.50
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Electro Industries EMB-M2-05 - 5 kW - 17K BTU - Hot Water Electric Boiler - 240V - 1 Phase
Learn More About Electro Industries EMB-M2-01-120-1acw-sale-badge
Electro Industries EMB Mini-Boiler™ - 1.1 kW - 3.7K BTU - Hot Water Electric Boiler - 120V - 1 Phase - Modulating
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Item#: 150632
Model#: EMB-M2-01-120-1
Brand: Electro Industries
$1,696.50
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Electro Industries EMB Mini-Boiler™ - 1.1 kW - 3.7K BTU - Hot Water Electric Boiler - 120V - 1 Phase - Modulating
Learn More About Electro Industries EMB-M2-12-240-1acw-sale-badge
Electro Industries EMB Mini-Boiler™ - 12 kW - 40.9K BTU - Hot Water Electric Boiler - 208/240V - 1 Phase - Modulating
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Item#: 150636
Model#: EMB-M2-12-240-1
Brand: Electro Industries
$2,097.00
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Electro Industries EMB Mini-Boiler™ - 12 kW - 40.9K BTU - Hot Water Electric Boiler - 208/240V - 1 Phase - Modulating
Learn More About Electro Industries EMB-M2-18-240-1acw-sale-badge
Electro Industries EMB Mini-Boiler™ - 18 kW - 61.4K BTU - Hot Water Electric Boiler - 208/240V - 1 Phase - Modulating
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Item#: 150638
Model#: EMB-M2-18-240-1
Brand: Electro Industries
$2,277.00
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Electro Industries EMB Mini-Boiler™ - 18 kW - 61.4K BTU - Hot Water Electric Boiler - 208/240V - 1 Phase - Modulating
Learn More About Burnham 304BNI-Gacw-sale-badge
Burnham Series 3 - 88K BTU - 84.0% AFUE - Hot Water Gas Boiler - Chimney Vent
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Floor Mounted, Cast Iron Boiler with Gas Valve. Ships Packaged. Ratings: 105K BTU Gross Input, 88K BTU DOE Capacity, 77K BTU Net IBR Capacity. Includes Circulator.
Item#: 150647
Model#: 304BNI-G
Brand: Burnham
$3,151.16
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Burnham Series 3 - 88K BTU - 84.0% AFUE - Hot Water Gas Boiler - Chimney Vent
Learn More About Burnham 305BNI-Gacw-sale-badge
Burnham Series 3 - 117K BTU - 84.0% AFUE - Hot Water Gas Boiler - Chimney Vent
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Floor Mounted, Cast Iron Boiler with Gas Valve. Ships Packaged. Ratings: 140K BTU Gross Input, 117K BTU DOE Capacity, 102K BTU Net IBR Capacity. Includes Circulator.
Item#: 150648
Model#: 305BNI-G
Brand: Burnham
$3,534.63
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Burnham Series 3 - 117K BTU - 84.0% AFUE - Hot Water Gas Boiler - Chimney Vent
Learn More About Burnham ALP210BW-4G02acw-sale-badge
Burnham Alpine - 194K BTU - 95.0% AFUE - Hot Water Gas Boiler - Direct Vent
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Wall Mounted, Condensing Boiler with Modulating Gas Valve. Ships Packaged. Ratings: 210K BTU Gross Input, 194K BTU DOE Capacity, 169K BTU Net IBR Capacity. Includes Circulator.
Item#: 150652
Model#: ALP210BW-4G02
Brand: Burnham
$5,994.00
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Burnham Alpine - 194K BTU - 95.0% AFUE - Hot Water Gas Boiler - Direct Vent
Learn More About Burnham ALP285BF-4G07acw-sale-badge
Burnham Alpine - 262K BTU - 95.0% AFUE - Hot Water Gas Boiler - Direct Vent
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Wall Mounted, Condensing Boiler with Modulating Gas Valve. Ships Packaged. Ratings: 285K BTU Gross Input, 262K BTU DOE Capacity, 228K BTU Net IBR Capacity. Includes Circulator.
Item#: 150653
Model#: ALP285BF-4G07
Brand: Burnham
$8,562.21
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Burnham Alpine - 262K BTU - 95.0% AFUE - Hot Water Gas Boiler - Direct Vent
Learn More About Burnham ALP399CF-4L00acw-sale-badge
Burnham Alpine Commercial - 375K BTU - 94.1% AFUE - Hot Water Gas Boiler - Direct Vent
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Wall Mounted, Condensing Boiler with Modulating Gas Valve. Ships Packaged. Ratings: 399K BTU Gross Input, 375K BTU DOE Capacity, 326K BTU Net IBR Capacity. Includes Circulator.
Item#: 150654
Model#: ALP399CF-4L00
Brand: Burnham
$12,484.91
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Burnham Alpine Commercial - 375K BTU - 94.1% AFUE - Hot Water Gas Boiler - Direct Vent
Learn More About Burnham ALP500CF-5L00acw-sale-badge
Burnham Alpine Commercial - 485K BTU - 97.0% AFUE - Hot Water Gas Boiler - Direct Vent
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Wall Mounted, Condensing Boiler with Modulating Gas Valve. Ships Packaged. Ratings: 500K BTU Gross Input, 485K BTU DOE Capacity, 442K BTU Net IBR Capacity. Includes Circulator.
Item#: 150655
Model#: ALP500CF-5L00
Brand: Burnham
$16,291.67
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Only 2 In-Stock
Burnham Alpine Commercial - 485K BTU - 97.0% AFUE - Hot Water Gas Boiler - Direct Vent
Learn More About Burnham ALTAC-200-1G00acw-sale-badge
Burnham ALTAC - 141K BTU - 95% AFUE - Combi Gas Boiler - Direct Vent
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Wall Mounted, Combi Gas Boiler with 2-Step NG to LP conversion included. Ratings: 200K BTU Gross Input, 141K BTU DOE Capacity, 123K Net IBR Capacity. Includes Circulator.
Item#: 150660
Model#: ALTAC-200-1G00
Brand: Burnham
$3,253.00
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Burnham ALTAC - 141K BTU - 95% AFUE - Combi Gas Boiler - Direct Vent
Learn More About Burnham ES24BNI-Gacw-sale-badge
Burnham ES2 - 89K BTU - 85.0% AFUE - Hot Water Gas Boiler - Chimney Vent
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Floor Mounted, Cast Iron Boiler with Conversion Included. Ships Packaged. Ratings: 105K BTU Gross Input, 89K BTU DOE Capacity, 77K BTU Net IBR Capacity. Includes Circulator.
Item#: 150665
Model#: ES24BNI-G
Brand: Burnham
$3,582.76
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Burnham ES2 - 89K BTU - 85.0% AFUE - Hot Water Gas Boiler - Chimney Vent
Learn More About Burnham ES25BNI-Gacw-sale-badge
Burnham ES2 - 119K BTU - 85.0% AFUE - Hot Water Gas Boiler - Chimney Vent
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Floor Mounted, Cast Iron Boiler with Conversion Included. Ships Packaged. Ratings: 140K BTU Gross Input, 119K BTU DOE Capacity, 103K BTU Net IBR Capacity. Includes Circulator.
Item#: 150666
Model#: ES25BNI-G
Brand: Burnham
$4,010.18
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Burnham ES2 - 119K BTU - 85.0% AFUE - Hot Water Gas Boiler - Chimney Vent
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.