Peerless Gas Boilers

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Peerless is one of the most trusted names in the boiler industry, offering a full line of natural gas and propane boilers in a variety of sizes and options. Find a Peerless gas boiler for your needs today.

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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.

50000 - 59999 (1)

70000 - 79999 (1)

100000 - 109999 (1)

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130000 - 139999 (1)

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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.

50000 - 59999 (1)

80000 - 89999 (1)

110000 - 119999 (1)

140000 - 149999 (1)

160000 - 169999 (1)

180000 - 189999 (1)

210000 - 219999 (1)

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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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100000 - 109999 (1)

140000 - 149999 (1)

170000 - 179999 (1)

190000 - 199999 (1)

220000 - 229999 (1)

260000 - 269999 (1)

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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

82 (7)

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.

Chimney Vent (7)

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.

Hot Water (7)

Fuel Type

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

Natural Gas (7)

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

Single Stage (7)

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Peerless (7)

Learn More About Peerless MI-06-SPRK-WPC-N

Peerless MI-06 - 143K BTU - 82.0% AFUE - Hot Water Gas Boiler - Chimney Vent

Model: MI-06-SPRK-WPC-N

Floor Mounted, Cast Iron Boiler with Single Stage Gas Valve. Ships Packaged. Ratings: 175K BTU Gross Input, 143K BTU DOE Capacity, 124K BTU Net IBR Capacity.

(2)

$2,522.00

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Free Shipping & Lift Gate

*This product qualifies for Free Shipping anywhere in the contiguous US. Accessories may ship separately. Items over 100lbs shipped via semi-truck, be sure to select "Lift Gate" to lower the product to the ground curbside. Remote area surcharges may apply, see our full shipping policy for more details.

2% Check Discount

Save 2% instantly by using our convenient "e-check" option or by simply mailing us a paper check. Yes, your order will be delayed slightly (5 business days). But, if you can wait, the savings are significant.

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Learn More About Peerless MI-04-SPRK-WPC-N

Peerless MI-04 - 86K BTU - 82.1% AFUE - Hot Water Gas Boiler - Chimney Vent

Model: MI-04-SPRK-WPC-N

Floor Mounted, Cast Iron Boiler with Single Stage Gas Valve. Ships Packaged. Ratings: 105K BTU Gross Input, 86K BTU DOE Capacity, 75K BTU Net IBR Capacity.

(1)

$2,149.00

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2% Check Discount

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Learn More About Peerless MI-05-SPRK-WPC-N

Peerless MI-05 - 115K BTU - 82.0% AFUE - Hot Water Gas Boiler - Chimney Vent

Model: MI-05-SPRK-WPC-N

Floor Mounted, Cast Iron Boiler with Single Stage Gas Valve. Ships Packaged. Ratings: 140K BTU Gross Input, 115K BTU DOE Capacity, 100K BTU Net IBR Capacity.

(1)

$2,179.00

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Learn More About Peerless MI-07-SPRK-WPC-N

Peerless MI-07 - 160K BTU - 82.0% AFUE - Hot Water Gas Boiler - Chimney Vent

Model: MI-07-SPRK-WPC-N

Floor Mounted, Cast Iron Boiler with Single Stage Gas Valve. Ships Packaged. Ratings: 195K BTU Gross Input, 160K BTU DOE Capacity, 139K BTU Net IBR Capacity.

(1)

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$2,764.95

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Learn More About Peerless MI-08-SPRK-WPC-N

Peerless MI-08 - 186K BTU - 82.0% AFUE - Hot Water Gas Boiler - Chimney Vent

Model: MI-08-SPRK-WPC-N

Floor Mounted, Cast Iron Boiler with Single Stage Gas Valve. Ships Packaged. Ratings: 228K BTU Gross Input, 186K BTU DOE Capacity, 162K BTU Net IBR Capacity.

(1)

$2,989.00

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Learn More About Peerless MI-09-SPRK-WPC-N

Peerless MI-09 - 211K BTU - 82.0% AFUE - Hot Water Gas Boiler - Chimney Vent

Model: MI-09-SPRK-WPC-N

Floor Mounted, Cast Iron Boiler with Single Stage Gas Valve. Ships Packaged. Ratings: 260K BTU Gross Input, 211K BTU DOE Capacity, 183K BTU Net IBR Capacity.

(1)

$3,302.95

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Learn More About Peerless MI-03-SPRK-WPC-N

Peerless MI-03 - 58K BTU - 82.2% AFUE - Hot Water Gas Boiler - Chimney Vent

Model: MI-03-SPRK-WPC-N

Floor Mounted, Cast Iron Boiler with Single Stage Gas Valve. Ships Packaged. Ratings: 70K BTU Gross Input, 58K BTU DOE Capacity, 50K BTU Net IBR Capacity.

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$1,749.00

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