Chimney Vent Hot Water Boilers

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Net I=B=R Capacity (BTU) Learn More
Net I=B=R Capacity (BTU)
I=B=R, also referred to as Net Output or AHRI Capacity, is the rated heat output of a boiler after accounting for combustion efficiency, piping loss, and an extra pickup factor. We recommend sizing steam boilers based on the I=B=R rating.
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DOE Heating Capacity (BTU) Learn More
DOE Heating Capacity (BTU)
Also referred to as Gross Output, this is the output of a boiler after accounting for combustion efficiency. We recommend sizing hot water boilers based on the DOE Heating Capacity.
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Maximum Input Capacity (BTU) Learn More
Maximum Input Capacity (BTU)
The Maximum Input Capacity describes how quickly the appliance will use fuel when delivering it's maximum capacity. The units may change depending on the fuel being used.
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AFUE (%) Learn More
AFUE (%)
AFUE (Annual Fuel Utilization Efficiency) measures the efficiency of combustion equipment over the entire heating season, and is calculated by dividing the amount of energy that is actually heating your home by the total energy contained in the fuel used by the boiler/furnace.
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Fuel Type Learn More
Fuel Type
To create heat, some form of fuel is required. Fuel Type specifies what the product uses as an input to create heat.
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Product Line
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DHW Production Learn More
DHW Production
DHW (Domestic Hot Water) is potable water for uses other than space heat. Some boilers are able to provide DHW "out of the box", while others can do so with the purchase of optional accessories.
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Product Height (Inches)
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Medium Learn More
Medium
Medium refers to the substance that carries heat through the heating system. Systems are either designed to use either Hot Water or Steam as a medium, and components are usually specific to one or the other.
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Modulating/Staging Learn More
Modulating/Staging
Stages are unique speeds or levels that equipment can operate at. More stages allow for better fine-tuned control of output, which improves comfort and efficiency. Modulating equipment can operate across a range of levels, giving the highest level of fine-tuned control.
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Ultra Low NOx Emissions Learn More
Ultra Low NOx Emissions
NOx is a byproduct of the combustion process, and it's output is regulated in some jurisdictions. Many regulators mirror SCAQMD rules, which regulate air quality for some parts of Southern California. Ultra Low NOx appliances emit less than 10-14 ng/J (nanogram per Joule) of NOx.
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Product Width (Inches)
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Product Depth (Inches)
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Floor Mounted, Cast Iron Boiler with Single Stage Gas Valve. Ships Packaged. Included Grundfos Circulator and LWCO. Ratings: 172K BTU Gross Input, 145K BTU DOE Capacity, 126K BTU Net IBR Capacity.
Item#: 102571
Model#: 206EN-G0
Brand: Burnham
$3,934.00
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Factory-Direct
$3,862.00
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Floor Mounted, Cast Iron Boiler. Ships Knockdown. Ratings: 1.00GPH Gross Input, 120K BTU DOE Capacity, 104K BTU Net IBR Capacity.
Item#: 150661
Brand: Burnham
$2,697.00
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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
$3,061.00
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Floor Mounted, Cast Iron Boiler with Single Stage Gas Valve. Ships Packaged. Included Taco Circulator and LWCO. Ratings: 103K BTU Gross Input, 87K BTU DOE Capacity, 76K BTU Net IBR Capacity.
Item#: 102568
Model#: 204EN-T0
Brand: Burnham
$3,061.00
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Factory-Direct
Floor Mounted, Cast Iron Boiler with Single Stage Gas Valve. Ships Packaged. Ratings: 233k BTU Gross Input, 198k BTU DOE Capacity, 172k BTU Net IBR Capacity. Includes Circulator.
Item#: 109212
Model#: 113081460
Brand: Weil-McLain
$4,423.00
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Floor Mounted, Cast Iron Boiler. Ships Knockdown. Ratings: 1.20GPH Gross Input, 148K BTU DOE Capacity, 129K BTU Net IBR Capacity.
Item#: 150662
Brand: Burnham
$3,242.00
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Factory-Direct
Floor Mounted, Cast Iron Boiler. Ships Packaged. Ratings: 1.05 GPH Gross Input, 129K BTU DOE Capacity, 112K BTU Net IBR Capacity. Includes Circulator.
Item#: 37915
Brand: Burnham
$3,958.00
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Factory-Direct
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
Brand: Burnham
$4,636.00
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Factory-Direct
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
Brand: Burnham
$5,344.00
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Factory-Direct
Floor Mounted, Cast Iron Boiler. Ships Disassembled. Ratings: 1.40 GPH Gross Input, 171K BTU DOE Capacity, 149K BTU Net IBR Capacity.
Item#: 72594
Model#: G215/4-AFG
Brand: Buderus
$4,504.00
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Factory-Direct
Floor Mounted, Cast Iron Boiler. Ships Disassembled. Ratings: 1.70 GPH Gross Input, 207K BTU DOE Capacity, 180K BTU Net IBR Capacity.
Item#: 72602
Model#: G215/5-CF375
Brand: Buderus
$4,608.00
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Factory-Direct
Floor Mounted, Cast Iron Boiler with Single Stage Gas Valve. Ships Packaged. Included Taco Circulator and LWCO. Ratings: 140K BTU Gross Input, 117K BTU DOE Capacity, 102K BTU Net IBR Capacity.
Item#: 82213
Model#: X-205N-TH
Brand: Burnham
$2,881.00
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Factory-Direct
Floor Mounted, Cast Iron Boiler with Single Stage Gas Valve. Ships Packaged. Included Taco Circulator and LWCO. Ratings: 70K BTU Gross Input, 59K BTU DOE Capacity, 51K BTU Net IBR Capacity.
Item#: 82218
Model#: X203PTH
Brand: Burnham
$2,481.00
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Factory-Direct
Floor Mounted, Cast Iron Boiler with Single Stage Gas Valve. Ships Packaged. Included Taco Circulator and LWCO. Ratings: 138K BTU Gross Input, 116K BTU DOE Capacity, 101K BTU Net IBR Capacity.
Item#: 102570
Model#: 205EN-T0
Brand: Burnham
$3,436.00
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Factory-Direct
Floor Mounted, Cast Iron Boiler with Single Stage Gas Valve. Ships Packaged. Included Grundfos Circulator and LWCO. Ratings: 207K BTU Gross Input, 174K BTU DOE Capacity, 151K BTU Net IBR Capacity.
Item#: 102572
Model#: 207EN-G0
Brand: Burnham
$4,423.00
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Floor Mounted, Cast Iron Boiler with Single Stage Gas Valve. Ships Packaged. Ratings: 245K BTU Gross Input, 205K BTU DOE Capacity, 178K BTU Net IBR Capacity. Includes Taco Circulator.
Item#: 103100
Brand: Crown Boiler Co.
$3,938.00
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Factory-Direct
Floor Mounted, Cast Iron Boiler with Single Stage Gas Valve. Ships Packaged. Ratings: 245K BTU Gross Input, 205K BTU DOE Capacity, 178K BTU Net IBR Capacity. Includes Taco Circulator.
Item#: 103101
Brand: Crown Boiler Co.
$3,915.00
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Factory-Direct
Floor Mounted, Cast Iron Boiler with Single Stage Gas Valve. Ships Packaged. Ratings: 67k BTU Gross Input, 56k BTU DOE Capacity, 49k BTU Net IBR Capacity. Includes Circulator.
Item#: 109079
Model#: 381359072
Brand: Weil-McLain
$2,654.00
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In-Stock
Floor Mounted, Cast Iron Boiler with Single Stage Gas Valve. Ships Packaged. Ratings: 100k BTU Gross Input, 85k BTU DOE Capacity, 74k BTU Net IBR Capacity. Includes Circulator.
Item#: 109081
Model#: 381359074
Brand: Weil-McLain
$2,898.00
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In-Stock
Floor Mounted, Cast Iron Boiler with Single Stage Gas Valve. Ships Packaged. Ratings: 133k BTU Gross Input, 113k BTU DOE Capacity, 98k BTU Net IBR Capacity. Includes Circulator.
Item#: 109083
Model#: 381359076
Brand: Weil-McLain
$3,243.00
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In-Stock
Floor Mounted, Cast Iron Boiler with Single Stage Gas Valve. Ships Packaged. Ratings: 200k BTU Gross Input, 170k BTU DOE Capacity, 148k BTU Net IBR Capacity. Includes Circulator.
Item#: 109087
Model#: 381359080
Brand: Weil-McLain
$4,121.00
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In-Stock
Floor Mounted, Cast Iron Boiler. Ships Packaged. Ratings: 68K BTU Maximum Input Capacity, 57K BTU DOE Capacity, 50K BTU Net IBR Capacity.
Item#: 111065
Brand: ProSelect Force Boilers
$1,915.00
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In-Stock
Floor Mounted, Cast Iron Boiler. Ships Packaged. Ratings: 272K BTU Maximum Input Capacity, 227K BTU DOE Capacity, 197K BTU Net IBR Capacity.
Item#: 111067
Brand: ProSelect Force Boilers
$3,233.00
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In-Stock