Boilers

Burnham X-2 - 88K BTU - 84% AFUE - Hot Water Gas Boiler - Chimney Vent

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.

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$2,620.00

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Burnham X-2 - 88K BTU - 84% AFUE - Hot Water Propane Boiler - Chimney Vent

Model: X-204P-GH

Floor Mounted, Cast Iron Boiler with Single Stage Gas Valve. Ships Packaged. Included Grundfos Circulator and LWCO. Ratings: 150K BTU Gross Input, 88K BTU DOE Capacity, 77K BTU Net IBR Capacity.

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$2,620.00

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Burnham X-2 - 88K BTU - 84% AFUE - Hot Water Propane Boiler - Chimney Vent

Model: X204PTH

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.

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$2,639.00

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Weil-McLain AquaBalance™ AB-155-C - 144K BTU - 95% AFUE - Combi Gas Boiler - Direct Vent

Model: 383100050

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.

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$1,836.92

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Learn More About ProSelect Force Boilers FORCEVFO5E

ProSelect® Force™ Boilers - 214k BTU - 86.4% AFUE - Hot Water Oil Boiler - Chimney Vent - Includes Beckett® AFG Burner

Model: FORCEVFO5E

Floor Mounted, Cast Iron Boiler. Ships Packaged. Ratings: 245K BTU Maximum Input Capacity, 214K BTU DOE Capacity, 186K BTU Net IBR Capacity. Includes Circulator

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$4,120.00

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Displaying Products 313 - 317 (of 317)

Tools & Articles

Boiler Heating System Buying Guide

How to Pick the Perfect Boiler

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A Boiler's Best Friend

An Intro to Tekmar Controls

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Boilers warm a home by using a fuel source to heat water, which is then distributed as liquid or steam through a piping system. The benefits of boilers include evenly-distributed heat, quiet operation, and no airborne particles. Armed with our buyer's guide, expert support and customer reviews, you can feel confident in finding the right boiler for your needs.

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Fuel Type
To create heat, some form of fuel is required. Fuel Type specifies what the product uses as an input to create heat.

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.

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.

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.

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. 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.

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. 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.

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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Brand

× Fuel Type To create heat, some form of fuel is required. Fuel Type specifies what the product uses as an input to create heat. Fuel Type

× 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. Net I=B=R Capacity (BTU)

× 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. DOE Heating Capacity (BTU)

× 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. Maximum Input Capacity (BTU)

× 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. DHW Production

Maximum Altitude (Feet)

× 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. Medium

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Tools & Articles

Boiler System Accessories

Fuel Type
To create heat, some form of fuel is required. Fuel Type specifies what the product uses as an input to create heat.

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.

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.

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.

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.

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.