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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.
Item#: 58497
Model#: FS-120 COMBI
Brand: Williamson-Thermoflo
Originally $2,439.00$2,289.00
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Wall Mounted, Condensing Boiler with Modulating Gas Valve. Ships Packaged. Ratings: 120K BTU Gross Input, 112K BTU DOE Capacity, 97K BTU Net IBR Capacity.
Item#: 94357
Model#: 383100045
Brand: Weil-McLain
$1,953.00
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$2,097.00
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Wall Mounted Boiler with Two Stage Operation. Ships Packaged.
Item#: 18277
Model#: EMB-S-9
Brand: Electro Industries
$929.00
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Wall Mounted, Condensing Combi Boiler with Modulating Gas Valve. Ships Packaged. Ratings: 120K BTU Gross Input, 111K BTU DOE Capacity, 97K BTU Net IBR Capacity. Includes Circulator.
Item#: 82296
Model#: NRCB199DV-LP
Brand: Noritz
$2,329.00
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$1,719.33
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Wall Mounted, Condensing Boiler with Modulating Gas Valve. Ships Packaged. Ratings: 101K BTU Gross Input, 89K BTU DOE Capacity, 79K BTU Net IBR Capacity. Includes Circulator.
Item#: 37392
Model#: ZWB28-3
Brand: Bosch Thermotechnology
$1,899.00
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Floor Mounted, Cast Iron Boiler with Single Stage Gas Valve. Ships Disassembled. Ratings: 105K BTU Gross Input, 87K BTU DOE Capacity, 65K BTU Net IBR Capacity.
Item#: 37666
Model#: KIN4LPI-LE2
Brand: Burnham
$2,705.00
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Floor/Wall Mounted, Condensing Boiler with Modulating Gas Valve. Ships Packaged. Ratings: 155K BTU Gross Input, 143K BTU DOE Capacity, 124K BTU Net IBR Capacity. Includes Circulator.
Item#: 82122
Model#: EVG 155
Brand: Weil-McLain
$3,744.00
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$3,795.00
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Wall Mounted Boiler with Modulating Operation. Ships Packaged.
Item#: 18309
Model#: EMB-H-7
Brand: Electro Industries
$999.00
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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.
Item#: 37395
Model#: ZWB42-3
Brand: Bosch Thermotechnology
$2,649.00
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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
$3,458.00
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Floor/Wall Mounted, Condensing Boiler with Modulating Gas Valve. Ships Packaged. Ratings: 110K BTU Gross Input, 101K BTU DOE Capacity, 88K BTU Net IBR Capacity. Includes Circulator.
Item#: 82121
Model#: EVG 110
Brand: Weil-McLain
$3,193.00
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Wall Mounted, Condensing Boiler with Modulating Gas Valve. Ships Packaged. Ratings: 80K BTU Gross Input, 75K BTU DOE Capacity, 65K BTU Net IBR Capacity.
Item#: 94356
Model#: 383100035
Brand: Weil-McLain
$1,852.00
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Wall Mounted, Condensing Boiler with Modulating Gas Valve. Ships Packaged. Ratings: 155K BTU Gross Input, 144K BTU DOE Capacity, 125K BTU Net IBR Capacity.
Item#: 94358
Model#: 383100055
Brand: Weil-McLain
$2,156.00
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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.
Item#: 94361
Model#: 383100050
Brand: Weil-McLain
$2,332.00
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Wall Mounted, Condensing Boiler with Modulating Gas Valve. Ships Packaged. Ratings: 90K BTU Gross Input, 84K BTU DOE Capacity, 73K BTU Net IBR Capacity. Includes Circulator.
Item#: 94395
Model#: M090CN
Brand: Rinnai
$2,716.35
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Wall Mounted, Condensing Boiler with Modulating Gas Valve. Ships Packaged. Ratings: 120K BTU Gross Input, 112K BTU DOE Capacity, 97K BTU Net IBR Capacity. Includes Circulator.
Item#: 96054
Model#: M120CN
Brand: Rinnai
$2,791.75
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Floor Mounted, Cast Iron Boiler with Single Stage Gas Valve. Ships Packaged. Included Grundfos Circulator and LWCO. Ratings: 103K BTU Gross Input, 87K BTU DOE Capacity, 76K BTU Net IBR Capacity.
Item#: 102567
Model#: 204EN-G0
Brand: Burnham
$2,566.00
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$2,359.00
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$3,320.00
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Wall Mounted Boiler with Single Stage Operation. Ships Packaged.
Item#: 18275
Model#: EMB-S-5
Brand: Electro Industries
$879.00
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Floor Mounted, Cast Iron Boiler with Single Stage Gas Valve. Ships Disassembled. Ratings: 175K BTU Gross Input, 145K BTU DOE Capacity, 128K BTU Net IBR Capacity.
Item#: 49527
Model#: EG-50-W-PIDN
Brand: Weil-McLain
$3,117.60
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Ships in 7-14 Business Days
Tools & Articles
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 homeís 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 boilerís 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.