Innovation and Expertise to Meet Your Heating Needs

Portage & Main Boilers have been manufactured for over 40 years. We continually strive to be the leading innovators in the outdoor boiler business! Our factory is a state of the art facility that employs the latest manufacturing technology – including computer controlled robotic welders and laser cutting equipment.

The Portage & Main range of products include Ultimizer wood and coal models, auto-feed coal/pellet burners, automated wood chip burning systems and a line of EPA approved gasification boilers. 

We lead the way in innovation, quality and efficiency, using time tested and proven designs. We have developed the most efficient heat transfer exchangers available in any outdoor boiler on the market today.

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B500 for Commercial/Industrial heating requirements

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The B500 provides a longer burn time between fills depending on the fuel being burned and the size of structures being heated the B500 can go a week or more without refilling the 7 yard bin.

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Biomass, wood chips, pellets and other available combustible materials makes this boiler a viable choice for many business operations. Wood chips, pellets and many other biomass fuels also generate a higher btu output per cubic meter than cord wood. The adjustable heat output provides the flexibility to increase the heat out put as required by weather or the addition of additional structures. ‘

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Multi configuration setup provides the flexibility for virtually any location. The 4 position configuration options, allow for the fuel bin to open from the front or back and be positioned to the left or right of the boiler. Contact us for more details.

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Great for large operations, multi buildings, shops, businesses, farms, greenhouses, municipal buildings, apartments, resorts, retirement homes, kilns, commercial hot water and more.

 

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Stoker Series for Commercial/Industrial heating requirements

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• 2 size available heating up to 30,000 sq ft (1,000,000+ btu’s)

• Factory configured for Wood Pellets or Coal fuel options

• Automated fuel feed system

• Adjustable heat output

• User supplied grain/fuel hopper

• Clean burning

• High efficient using less fuel

• Auger driven auto ash empty ash system

• Multi-port triple pass heat exchanger

• Reliable digital control system

• Powder coated paint finish

• 20 Year limited warranty

Click here to view brochure.

Need a lot of heat for a big area or multiple buildings?

The Stokers series configured for Wood or Coal are designed for large applications that require a lot of heat on an uninterrupted basis for an entire season. When coupled with the users choice of fuel and hopper you can literally forget about sourcing any additional fuel until the next heating season. If your requirement is 10 or 20+ tons of fuel to carry you through the entire heating system, it can be as simple as a grain truck delivering your pellets and all you need to do is periodically check on the boiler for minor cleaning and maintenance for the entire heating season.

Pellet prices are generally cheaper when purchased in bulk, delivery can be arranged via grain trucks to fill your hopper.

The triple multi-port triple pass heat exchanger efficiently transfers heat from the exhaust of the fire to the water jacket.

The Auger driven ash empty system reduces user input/maintenance.

The adjustable heat output provides the flexibility for the addition of future buildings or structures that require heat.

Great for large operations, multi buildings, shops, businesses, farms, greenhouses, municipal buildings, apartments, resorts, retirement homes, kilns, commercial hot water and more.

 

 

 

Portage and Main Optimizer Series

• 2 sizes available heating 1500 to 6000 sq ft (120,000 to 250,000+ btu’s)

• Gasification design, EPA certified

• Clean burning

• High efficient using less wood

• Multi-pass double pass heat exchanger

• Reliable digital control system

• ¼ inch W44 Cold Rolled Steel

• Sectional Design

• Double Welded boiler joints

• Easy cleaning system

• Higher quality refractory brick made to last

• Powder coated paint finish

• 20 year limited warranty

• EPA Certified

Click here to view brochure.

Gasification Boilers re-burn their exhaust creating a cleaner more efficient boiler using less wood. For optimal performance all Gasification Boilers require properly seasoned wood. Portage and Main has been building Gasification Boilers since 2009, long before most other companies.

The EGR Optimizer series is the latest version of Portage and Mains Wood Gasification EPA Certified boilers, utilizing proven features and design to obtain a higher efficiency and meeting the increasing EPA regulations.

All exhaust from the burning chamber passes through the Multiport Double Pass Heat Exchanger (twice the amount of extraction system than most competitors) the double pass means more heat is extracted from the exhaust prior to exiting the chimney.

The Optimizer Series can be connected to virtually any existing forced air or hydronic radiant heating system. (When sized accordingly) the same furnace can also be utilized to heat all your other buildings, hot tub, swimming pool, domestic hot water and more.

 

 

 

 

 

 

G-CLASS MODELS

• 3 sizes available heating 1500 to 6000 sq ft (160,000 to 200,000+ btu’s)

• Gasification design, EPA certified

• ECM/DC Suction Motor

• Ignition Door

• Clean burning

• High efficient uses less wood

• Multi-port single pass heat exchanger

• Reliable digital control system

• Easy sweep cleaning system

• 15 year limited warranty

• EPA Certified

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The ECM/DC Suction Motor is more suitable for many Off-Grid applications. Gasification Boilers re-burn their exhaust creating a cleaner more efficient boiler using less wood. For optimal performance all Gasification Boilers require properly seasoned wood.

The G-Class Series can be connected to virtually any existing forced air or hydronic radiant heating system. (When sized accordingly) the same furnace can also be utilized to heat all your other buildings, hot tub, swimming pool, domestic hot water and more.