Burnham Residential Boilers

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Floor Mounted, Cast Iron Boiler with Single Stage Gas Valve. Ships Packaged. Included Grundfos Circulator and LWCO. Ratings: 241K BTU Gross Input, 202K BTU DOE Capacity, 176K BTU Net IBR Capacity.
$4,943.00
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Floor Mounted, Cast Iron Boiler with Single Stage Gas Valve. Ships Packaged. Included Grundfos Circulator and LWCO. Ratings: 38K BTU Gross Input, 32K BTU DOE Capacity, 28K BTU Net IBR Capacity.
$2,570.00
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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.
$3,640.00
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Floor Mounted, Cast Iron Boiler with Gas Valve. Ships Packaged. Ratings: 70K BTU Gross Input, 59K BTU DOE Capacity, 51K BTU Net IBR Capacity. Includes Circulator.
$2,972.00
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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.
$3,246.00
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Wall Mounted, Condensing Boiler with Modulating Gas Valve. Ships Packaged. Ratings: 150K BTU Gross Input, 136K BTU DOE Capacity, 118K BTU Net IBR Capacity. Includes Circulator.
$6,021.00
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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.
$6,760.00
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Wall Mounted, Condensing Boiler with Modulating Gas Valve. Ships Packaged. Ratings: 80K BTU Gross Input, 72K BTU DOE Capacity, 63K BTU Net IBR Capacity. Includes Circulator.
$4,717.00
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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.
$17,783.00
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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.
$4,131.00
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Floor Mounted, Cast Iron Boiler with Conversion Included. Ships Packaged. Ratings: 175K BTU Gross Input, 149K BTU DOE Capacity, 130K BTU Net IBR Capacity. Includes Circulator.
$4,716.00
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Floor Mounted, Cast Iron Boiler with Conversion Included. Ships Packaged. Ratings: 210K BTU Gross Input, 178K BTU DOE Capacity, 155K BTU Net IBR Capacity. Includes Circulator.
$5,286.00
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Floor Mounted, Cast Iron Boiler with Conversion Included. Ships Packaged. Ratings: 245K BTU Gross Input, 208K BTU DOE Capacity, 181K BTU Net IBR Capacity. Includes Circulator.
$5,774.00
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Floor Mounted, Cast Iron Boiler with Conversion Included. Ships Packaged. Ratings: 70K BTU Gross Input, 59K BTU DOE Capacity, 51K BTU Net IBR Capacity. Includes Circulator.
$3,368.00
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Floor Mounted, Cast Iron Boiler with Step-opening Gas Valve. Ships Packaged. Ratings: 175K BTU Gross Input, 144K BTU DOE Capacity, 108K BTU Net IBR Capacity.
$4,649.00
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Floor Mounted, Cast Iron Boiler with Step-opening Gas Valve. Ships Packaged. Ratings: 210K BTU Gross Input, 173K BTU DOE Capacity, 130K BTU Net IBR Capacity.
$5,051.00
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Floor Mounted, Cast Iron Boiler with Step-opening Gas Valve. Ships Packaged. Ratings: 125K BTU Gross Input, 103K BTU DOE Capacity, 77K BTU Net IBR Capacity.
$5,083.00
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Floor Mounted, Cast Iron Boiler with Step-opening Gas Valve. Ships Packaged. Ratings: 150K BTU Gross Input, 124K BTU DOE Capacity, 93K BTU Net IBR Capacity.
$5,300.00
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Floor Mounted, Cast Iron Boiler with Step-opening Gas Valve. Ships Packaged. Ratings: 175K BTU Gross Input, 144K BTU DOE Capacity, 108K BTU Net IBR Capacity.
$6,096.00
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Floor Mounted, Cast Iron Boiler with Step-opening Gas Valve. Ships Packaged. Ratings: 200K BTU Gross Input, 165K BTU DOE Capacity, 124K BTU Net IBR Capacity.
$6,084.00
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Floor Mounted, Cast Iron Boiler with Step-opening Gas Valve. Ships Packaged. Ratings: 100K BTU Gross Input, 82K BTU DOE Capacity, 62K BTU Net IBR Capacity.
$4,472.00
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Floor Mounted, Cast Iron Boiler with Conversion Included. Ships Packaged. Ratings: 140K BTU Gross Input, 120K BTU DOE Capacity, 104K BTU Net IBR Capacity. Includes Circulator.
$4,315.00
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Floor Mounted, Cast Iron Boiler with Conversion Included. Ships Packaged. Ratings: 105K BTU Gross Input, 90K BTU DOE Capacity, 78K BTU Net IBR Capacity. Includes Circulator.
$3,694.00
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Floor Mounted, Cast Iron Boiler with Single Stage Gas Valve. Ships Packaged. Included Taco Circulator and LWCO. Ratings: 210K BTU Gross Input, 176K BTU DOE Capacity, 153K BTU Net IBR Capacity.
$3,913.00
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Displaying Products 25 - 48 (of 110)
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About Burnham Boilers
Burnham residential boilers are known for their superior efficiency, user-friendly controls, and wide breadth of condensing models. We offer natural gas, liquid propane, and dual fuel Burnham models in heating capacities up to 150K BTUs.
How Does a Condensing Boiler Work?
Condensing boilers use a secondary heat exchanger to collect heat from exhaust gases and repurpose it to preheat incoming water. Learn more in our condensing boiler buyer's guide.








