80-85% Efficiency Natural Gas Hot Water Boilers

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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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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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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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Vent Type Learn More
Vent Type
Products that use combustion (burning) of fuel to create heat also create potentially dangerous gasses that need to be exhausted (AKA "Vented"). Depending on the product, venting can be done via a chimney, through a side wall, or use a second vent to provide fresh air to the appliance.
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Product Height (Inches)
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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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Energy Star Listed
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Minimum Altitude (Feet)
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Maximum Altitude (Feet)
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Floor Mounted, Cast Iron Boiler with Single Stage Gas Valve. Ships Packaged. Included Taco Circulator and LWCO. Ratings: 241K BTU Gross Input, 202K BTU DOE Capacity, 176K BTU Net IBR Capacity.
Item#: 102575
Model#: 208EN-T0
Brand: Burnham
$4,824.00
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Floor Mounted, Cast Iron Boiler with Single Stage Gas Valve. Ships Packaged. Included Grundfos Circulator and LWCO. Ratings: 276K BTU Gross Input, 232K BTU DOE Capacity, 202K BTU Net IBR Capacity.
Item#: 102576
Model#: 209EN-G0
Brand: Burnham
$5,395.00
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Floor Mounted, Cast Iron Boiler with Single Stage Gas Valve. Ships Packaged. Included Taco Circulator and LWCO. Ratings: 276K BTU Gross Input, 232K BTU DOE Capacity, 202K BTU Net IBR Capacity.
Item#: 102577
Model#: 209EN-T0
Brand: Burnham
$5,395.00
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Floor Mounted, Cast Iron Boiler with Single Stage Gas Valve. Ships Packaged. Ratings: 38K BTU Gross Input, 32K BTU DOE Capacity, 28K BTU Net IBR Capacity. Includes Taco Circulator.
Item#: 103089
Brand: Crown Boiler Co.
$2,200.00
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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.
$2,421.00
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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 Taco Circulator.
Item#: 103097
Brand: Crown Boiler Co.
$3,109.00
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Floor Mounted, Cast Iron Boiler with Single Stage Gas Valve. Ships Packaged. Ratings: 210K BTU Gross Input, 176K BTU DOE Capacity, 153K BTU Net IBR Capacity. Includes Taco Circulator.
Item#: 103099
Brand: Crown Boiler Co.
$3,569.00
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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#: 103105
Brand: Crown Boiler Co.
$2,421.00
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Floor Mounted, Cast Iron Boiler with Single Stage Gas Valve. Ships Packaged. Ratings: 105K BTU Gross Input, 88K BTU DOE Capacity, 77K BTU Net IBR Capacity. Includes Taco Circulator.
Item#: 103107
Brand: Crown Boiler Co.
$2,584.00
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Floor Mounted, Cast Iron Boiler with Single Stage Gas Valve. Ships Packaged. Ratings: 140K BTU Gross Input, 117K BTU DOE Capacity, 102K BTU Net IBR Capacity. Includes Taco Circulator.
Item#: 103109
Brand: Crown Boiler Co.
$2,821.00
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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 Taco Circulator.
Item#: 103111
Brand: Crown Boiler Co.
$3,175.00
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Floor Mounted, Cast Iron Boiler with Single Stage Gas Valve. Ships Packaged. Ratings: 210K BTU Gross Input, 176K BTU DOE Capacity, 153K BTU Net IBR Capacity. Includes Taco Circulator.
Item#: 103113
Brand: Crown Boiler Co.
$3,569.00
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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#: 103115
Brand: Crown Boiler Co.
$3,938.00
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Floor Mounted, Cast Iron Boiler with Single Stage Gas Valve. Ships Packaged. Ratings: 280K BTU Gross Input, 234K BTU DOE Capacity, 203K BTU Net IBR Capacity. Includes Taco Circulator.
Item#: 103117
Brand: Crown Boiler Co.
$4,219.00
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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#: 108210
Model#: 381359102
Brand: Weil-McLain
$2,793.79
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Floor Mounted, Cast Iron Boiler with Single Stage Gas Valve. Ships Packaged. Ratings: 38k BTU Gross Input, 32k BTU DOE Capacity, 28k BTU Net IBR Capacity. Includes Circulator.
Item#: 109077
Model#: 381359070
Brand: Weil-McLain
$2,243.00
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Floor Mounted, Cast Iron Boiler with Single Stage Gas Valve. Ships Packaged. Ratings: 166k BTU Gross Input, 141k BTU DOE Capacity, 123k BTU Net IBR Capacity. Includes Circulator.
Item#: 109085
Model#: 381359078
Brand: Weil-McLain
$3,240.00
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Floor Mounted, Cast Iron Boiler with Single Stage Gas Valve. Ships Packaged. Ratings: 38k BTU Gross Input, 32k BTU DOE Capacity, 28k BTU Net IBR Capacity. Includes Circulator.
Item#: 109089
Model#: 381359098
Brand: Weil-McLain
$2,285.89
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Floor Mounted, Cast Iron Boiler with Single Stage Gas Valve. Ships Packaged. Ratings: 38k BTU Gross Input, 32k BTU DOE Capacity, 28k BTU Net IBR Capacity. Includes Circulator.
Item#: 109090
Model#: 381359099
Brand: Weil-McLain
$2,285.89
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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#: 109091
Model#: 381359100
Brand: Weil-McLain
$2,552.93
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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#: 109092
Model#: 381359101
Brand: Weil-McLain
$2,552.93
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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#: 109093
Model#: 381359103
Brand: Weil-McLain
$2,793.79
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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#: 109094
Model#: 381359104
Brand: Weil-McLain
$3,144.60
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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#: 109095
Model#: 381359105
Brand: Weil-McLain
$3,144.60
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Factory-Direct