Boilers

Featured Categories
Filter
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
Free Shipping
Learn More
Free Lift Gate
Learn More
Only 1 In-Stock
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
Free Shipping
Learn More
Free Lift Gate
Learn More
In-Stock
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
Free Shipping
Learn More
Free Lift Gate
Learn More
Only 1 In-Stock
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
Free Shipping
Learn More
Free Lift Gate
Learn More
Only 4 In-Stock
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#: 82295
Model#: NRCB199DV-NG
Brand: Noritz
$2,329.00
Free Shipping
Learn More
Free Lift Gate
Learn More
Ships in 4-7 Business Days
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
Free Shipping
Learn More
Free Lift Gate
Learn More
In-Stock
Wall Mounted Boiler with Two Stage Operation. Ships Packaged.
Item#: 18277
Model#: EMB-S-9
Brand: Electro Industries
$929.00
Free Shipping
Learn More
Ships in 3-4 Weeks
$2,299.00
Free Shipping
Learn More
Free Lift Gate
Learn More
In-Stock
$2,097.00
Free Shipping
Learn More
Free Lift Gate
Learn More
In-Stock
$3,117.00
Free Shipping
Learn More
Free Lift Gate
Learn More
Only 4 In-Stock
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
Free Shipping
Learn More
Free Lift Gate
Learn More
Backordered
Coming Soon! On New Orders
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.
Item#: 82299
Model#: NRCB180DV-NG
Brand: Noritz
$2,239.00
Free Shipping
Learn More
Free Lift Gate
Learn More
Ships in 4-7 Business Days
$2,713.00
Free Shipping
Learn More
Free Lift Gate
Learn More
In-Stock
$3,795.00
Free Shipping
Learn More
Free Lift Gate
Learn More
Ships in 7-14 Business Days
Floor Mounted, Cast Iron Boiler. Ships Packaged. Ratings: 0.95 GPH Gross Input, 115K BTU DOE Capacity, 100K BTU Net IBR Capacity. Includes Circulator.
Item#: 50058
Model#: P-WTGO-3
Brand: Weil-McLain
$2,663.00
Free Shipping
Learn More
Free Lift Gate
Learn More
Ships in 2-5 Business Days
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
Free Shipping
Learn More
Free Lift Gate
Learn More
Ships in 2-3 Weeks
Wall Mounted, Condensing Combi Boiler with Modulating Gas Valve. Ships Packaged. Ratings: 80K BTU Gross Input, 75K BTU DOE Capacity, 65K BTU Net IBR Capacity. Includes Circulator.
Item#: 94359
Model#: 383100030
Brand: Weil-McLain
$2,106.00
Free Shipping
Learn More
Free Lift Gate
Learn More
Only 3 In-Stock
$2,199.00
Free Shipping
Learn More
Free Lift Gate
Learn More
Only 1 In-Stock
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 Taco Circulator.
Item#: 103091
Brand: Crown Boiler Co.
$1,935.00
Free Shipping
Learn More
Free Lift Gate
Learn More
Ships in 2-5 Business Days
$3,593.00
Free Shipping
Learn More
Free Lift Gate
Learn More
In-Stock
Wall Mounted Boiler with Three Stage Operation. Ships Packaged.
Item#: 18279
Model#: EB-MS-15
Brand: Electro Industries
$1,499.00
Free Shipping
Learn More
This Item Is Built To Order
Floor Mounted, Cast Iron Boiler with Single Stage Gas Valve. Ships Packaged. Ratings: 241K BTU Gross Input, 199K BTU DOE Capacity, 149K BTU Net IBR Capacity.
Item#: 24039
Brand: Crown Boiler Co.
$3,587.00
Free Shipping
Learn More
Free Lift Gate
Learn More
Ships in 2-5 Business Days
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
Free Shipping
Learn More
Free Lift Gate
Learn More
Backordered
Estimated Ship Date March 02 On New Orders
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
Free Shipping
Learn More
Free Lift Gate
Learn More
In-Stock
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 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.