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Floor Mounted, Cast Iron Boiler with Single Stage Gas Valve. Ships Packaged. Ratings: 48K BTU Gross Input, 40K BTU DOE Capacity, 35K BTU Net IBR Capacity. Includes Circulator.
Item#: 31066
Brand: Williamson-Thermoflo
Originally $1,899.00$1,649.00
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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
$2,781.00
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Floor Mounted, Cast Iron Boiler with Single Stage Gas Valve. Ships Packaged. Ratings: 103K BTU Gross Input, 87K BTU DOE Capacity, 76K BTU Net IBR Capacity. Includes Circulator.
Item#: 37570
Model#: 7738503408
Brand: Buderus
$3,151.00
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Floor Mounted, Cast Iron Boiler with Single Stage Gas Valve. Ships Packaged. Ratings: 140K BTU Gross Input, 115K BTU DOE Capacity, 86K BTU Net IBR Capacity.
Item#: 37818
Model#: PIN5SNI-ME2
Brand: Burnham
$4,225.00
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Floor Mounted, Cast Iron Boiler. Ships Packaged. Ratings: 1.35 GPH Gross Input, 167K BTU DOE Capacity, 145K BTU Net IBR Capacity. Includes Circulator.
Item#: 37920
Model#: MPO-IQ189-TB
Brand: Burnham
$4,357.00
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Floor Mounted, Cast Iron Boiler. Ships Packaged. Ratings: 1.65 GPH Gross Input, 203K BTU DOE Capacity, 177K BTU Net IBR Capacity. Includes Circulator.
Item#: 37926
Model#: MPO-IQ231-TB
Brand: Burnham
$5,028.00
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Floor Mounted, Cast Iron Boiler with Single Stage Gas Valve. Ships Packaged. Ratings: 175K BTU Gross Input, 146K BTU DOE Capacity, 127K BTU Net IBR Capacity. Includes Circulator.
Item#: 38006
Model#: 306BPI-T
Brand: Burnham
$3,643.00
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Floor Mounted, Cast Iron Boiler with Single Stage Gas Valve. Ships Disassembled. Ratings: 405K BTU Gross Input, 312K BTU DOE Capacity, 234K BTU Net IBR Capacity.
Item#: 49596
Brand: Weil-McLain
$7,563.00
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Floor Mounted, Cast Iron Condensing Boiler with Single Stage Gas Valve. Ships Packaged. Ratings: 140K BTU Gross Input, 130K BTU DOE Capacity, 113K BTU Net IBR Capacity. Includes Circulator.
Item#: 49648
Model#: GV90+5
Brand: Weil-McLain
$4,514.00
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Floor Mounted, Cast Iron Condensing Boiler with Single Stage Gas Valve. Ships Packaged. Ratings: 70K BTU Gross Input, 65K BTU DOE Capacity, 56K BTU Net IBR Capacity. Includes Circulator.
Item#: 49650
Model#: GV90+3
Brand: Weil-McLain
$3,660.00
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Floor/Wall Mounted, Condensing Boiler with Modulating Gas Valve. Ships Packaged. Ratings: 399K BTU Gross Input, 383K BTU DOE Capacity, 333K BTU Net IBR Capacity. Includes Circulator.
Item#: 58493
Model#: EVG 399
Brand: Weil-McLain
$9,968.00
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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#: 58582
Brand: Burnham
$5,713.00
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$2,558.00
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Floor Mounted, Cast Iron Boiler. Ships Packaged. Ratings: 1.10 GPH Gross Input, 136K BTU DOE Capacity, 119K BTU Net IBR Capacity.
Item#: 72593
Model#: G115WS/5-AFG
Brand: Buderus
$2,968.00
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Floor Mounted, Condensing Boiler with Modulating Gas Valve. Ships Packaged. Ratings: 80K BTU Gross Input, 71K BTU DOE Capacity, 62K BTU Net IBR Capacity. Includes Circulator.
Item#: 79375
Model#: 383500733
Brand: Weil-McLain
$3,269.00
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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
$3,428.00
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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
$3,914.00
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Wall Mounted, Condensing Boiler with Modulating Gas Valve. Ships Packaged. Ratings: 240K BTU Gross Input, 222K BTU DOE Capacity, 193K BTU Net IBR Capacity. Includes Circulator.
Item#: 79462
Model#: PA250
Brand: Triangle Tube
$5,670.00
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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
$4,056.00
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Floor Mounted, Cast Iron Boiler with Single Stage Gas Valve. Ships Packaged. Included Taco Circulator and LWCO. Ratings: 150K BTU Gross Input, 88K BTU DOE Capacity, 77K BTU Net IBR Capacity.
Item#: 82219
Model#: X-204P-TH
Brand: Burnham
$2,285.00
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Floor Mounted, Cast Iron Boiler with Single Stage Gas Valve. Ships Packaged. Included Grundfos Circulator and LWCO. Ratings: 140K BTU Gross Input, 117K BTU DOE Capacity, 102K BTU Net IBR Capacity.
Item#: 82234
Model#: X-205P-GH
Brand: Burnham
$2,493.00
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Floor Mounted, Cast Iron Boiler with Single Stage Gas Valve. Ships Packaged. Included Taco Circulator and LWCO. Ratings: 172K BTU Gross Input, 145K BTU DOE Capacity, 126K BTU Net IBR Capacity.
Item#: 102558
Model#: 206EN-T0
Brand: Burnham
$3,663.00
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Floor Mounted, Cast Iron Boiler with Single Stage Gas Valve. Ships Packaged. Included Taco Circulator and LWCO. Ratings: 38K BTU Gross Input, 32K BTU DOE Capacity, 28K BTU Net IBR Capacity.
Item#: 102564
Model#: 202EN-T0
Brand: Burnham
$2,353.00
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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
$2,829.00
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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.