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Amtech300 Yearly Maintenance Kit: 1  AmTech300 and 1 Test Kit
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PRODUCT TYPE: Wood Furnace Parts & Accessories

MANUFACTURER: Alternative Heating & Supplies

Product Description AmTech 300 Boiler Treatment - Has been designed to be used in boiler treatment programs at a lower cost. These programs insist the boiler owner meet certain nitrite levels in order to comply with warranty requirements in regards...

$54.94
Yearly Maintenance Kit - Includes 8' Fire Rope, 1 gal. ProTech300 & 1 RTV Silicone, 10 oz
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PRODUCT TYPE: Wood Furnace Parts & Accessories

MANUFACTURER: Alternative Heating & Supplies

Product Description This Kit is all you need to keep your Wood Boiler running like the day you bought it! Typical Applications Water boilers Features 1x10 oz. tube of Black RTV Silicone 1 Gallon of Protech 300 Boiler treatment that...

$70.90
Woodmaster 5500 Maintenance Kit - Includes 9' Fire Rope, 2 Fan Cover, 1 gal. AmTech300 & 1 RTV Silicone, 10 oz
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PRODUCT TYPE: Wood Furnace Parts & Accessories

MANUFACTURER: Alternative Heating & Supplies

Maintenance Kit - 5500 Includes Fire Rope for 5500, two Fan Covers FC546, One Tube of RTV Silicone and One Gallon Amtech 300 The WoodMaster 5500 Yearly Maintenance Kit has everything you will Need to Tune Up your WoodMaster. The Yearly...

$100.87
Amtech300 Yearly Maintenance Kit: 2 AmTech 300 and 1 Test Kit
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PRODUCT TYPE: Wood Furnace Parts & Accessories

MANUFACTURER: Alternative Heating & Supplies

Product Description AmTech 300 Boiler Treatment - Has been designed to be used in boiler treatment programs at a lower cost. These programs insist the boiler owner meet certain nitrite levels in order to comply with warranty requirements in regards...

$89.93
Dormeyer 2005 M-1 Laminated Solenoid 4X240 - Quantity of 2
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MANUFACTURER: Alternative Heating & Supplies

Laminated solenoid, replacement for all WoodMaster models, pull-type continuous duty cycle rated at 25 Degree constructed of durable laminated steel with corrosion-resistant frame & Plunger. Solenoids have polyester or nylon bobbins, encapsulated or taped coils, steel Plunger springs, & brass...

$91.90
Yearly Maintenance Kit - Includes 7' Fire Rope, 1 gal. ProTech300 & 1 RTV Silicone, 10 oz
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PRODUCT TYPE: Wood Furnace Parts & Accessories

MANUFACTURER: Alternative Heating & Supplies

Product Description This Kit is all you need to keep your Wood Boiler running like the day you bought it!  Typical Applications Water boilers Features 1x10 oz. tube of Black RTV Silicone 1 Gallon of Protech 300 Boiler treatment that...

$68.91
Woodmaster 3300 - Includes 7' Fire Rope, 1 Fan Cover, 1 gal. AmTech300 & 1 RTV Silicone, 10 oz
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PRODUCT TYPE: Wood Furnace Parts & Accessories

MANUFACTURER: Alternative Heating & Supplies

Maintenance Kit - 3300 Includes Fire Rope for 3300, one Fan Cover- FC546, RTV Silicone and One Gallon Amtech 300 The WoodMaster 3300 Yearly Maintenance Kit has everything you will Need to Tune Up your WoodMaster The Yearly Maintenance Kit...

$77.90
Woodmaster 3300 Maintenance Kit - Includes 7' Fire Rope, 1 Fan Cover, 1 gal. AmTech300 & 1 RTV Silicone, 10 oz
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PRODUCT TYPE: Wood Furnace Parts & Accessories

MANUFACTURER: Alternative Heating & Supplies

Maintenance Kit - 3300 Includes Fire Rope for 3300, one FC546, RTV Silicone and One Gallon Protech 300 The WoodMaster 3300 Yearly Maintenance Kit has everything you will Need to Tune Up your WoodMaster! The Yearly Maintenance Kit Includes: Fire...

$87.90
Yearly Maintenance Kit - Includes 8' Fire Rope, 1 gal. AmTech300 & 1 RTV Silicone, 10 oz
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PRODUCT TYPE: Wood Furnace Parts & Accessories

MANUFACTURER: Alternative Heating & Supplies

Product Description This Kit is all you need to keep your Wood Boiler running like the day you bought it! Typical Applications Water boilers Features 1x10 oz. tube of Black RTV Silicone 1 Gallon of Amtech 300 Boiler treatment that...

$60.90
Velo 50 Circulating Pump
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PRODUCT TYPE: Wood Furnace Parts & Accessories

MANUFACTURER: Alternative Heating & Supplies

Introducing Our Brand New Circulating Pumps: Elevate your wood boiler system to unprecedented levels of precision and performance with the Velo Series Circulation Pumps. Comes with Plug attached! 2 year warranty. High-Temperature Performance:The Velo Series is designed to thrive in...

$149.99
Solenoid Bracket - Round
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PRODUCT TYPE: Wood Furnace Parts & Accessories

MANUFACTURER: AH&S

Product DescriptionThis is used to connect the laminated solenoid to your rubber flapper on a fan/blower that has a Round shoot. (FN1TDP3, FN1TDN7)Typical ApplicationsIf building your own Outdoor Wood Furnace this can be used along with: LS001 Laminated Solenoid FC546...

$26.99$19.99
Yearly Maintenance Kit - Includes 6' Fire Rope, 1 gal. ProTech300 & 1 RTV Silicone, 10 oz
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PRODUCT TYPE: Wood Furnace Parts & Accessories

MANUFACTURER: Alternative Heating & Supplies

Product Description This Kit is all you need to keep your Wood Boiler running like the day you bought it! Typical Applications Water boilers Features 1x10 oz. tube of Black RTV Silicone 1 Gallon of Protech300 Boiler treatment that treats...

$66.92
Yearly Maintenance Kit - Includes 9' Fire Rope, 1 gal. AmTech300 & 1 RTV Silicone, 10 oz
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PRODUCT TYPE: Wood Furnace Parts & Accessories

MANUFACTURER: Alternative Heating & Supplies

Product Description This Kit is all you need to keep your Wood Boiler running like the day you bought it!  Typical Applications Water boilers Features 1x10 oz. tube of Black RTV Silicone 1 Gallon of Amtech 300 Boiler treatment that...

$62.89
Yearly Maintenance Kit - Includes 7' Fire Rope 1 gal. AmTech300 & 1 RTV Silicone, 10 oz
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PRODUCT TYPE: Wood Furnace Parts & Accessories

MANUFACTURER: Alternative Heating & Supplies

Product Description This Kit is all you need to keep your Wood Boiler running like the day you bought it! Typical Applications Water boilers Features 1x10 oz. tube of Black RTV Silicone 1 Gallon of Amtech 300 Boiler treatment that...

$58.91
Dormeyer 2005 M-1 Laminated Solenoid 4X240 - Quantity of 4
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PRODUCT TYPE: Wood Furnace Parts & Accessories

MANUFACTURER: Alternative Heating & Supplies

Laminated solenoid, replacement for all WoodMaster models, pull-type continuous duty cycle rated at 25 Degree constructed of durable laminated steel with corrosion-resistant frame & Plunger. Solenoids have polyester or nylon bobbins, encapsulated or taped coils, steel Plunger springs, & brass...

$183.80
Outdoor Wood Boiler Water Treatment Rust Inhibitor AmTech 300 Test Kit
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PRODUCT TYPE: Wood Furnace Parts & Accessories

MANUFACTURER: Alternative Heating & Supplies

AmTech 300 Boiler Treatment - Has been designed to be used in boiler treatment programs at a lower cost. These programs insist the boiler owner meet certain nitrite levels in order to comply with warranty requirements in regards to boiler...

$54.94
Yearly Maintenance Kit - Includes 6' Fire Rope, 1 gal. AmTech300 & 1 RTV Silicone, 10 oz
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PRODUCT TYPE: Wood Furnace Parts & Accessories

MANUFACTURER: Alternative Heating & Supplies

Product Description This Kit is all you need to keep your Wood Boiler running like the day you bought it!  Typical Applications Water boilers Features 1x10 oz. tube of Black RTV Silicone 1 Gallon of Amtech 300 Boiler treatment that...

$56.92
Woodmaster 6500 Maintenance Kit - Includes 18' Fire Rope, 3 Fan Cover, 2-1 gal. ProTech300 & 1 RTV Silicone, 10 oz
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PRODUCT TYPE: Wood Furnace Parts & Accessories

MANUFACTURER: Alternative Heating & Supplies

Product Description This kit is all you need to keep your WoodMaster 6500 Model stove working like the day you bought it!  Doing yearly maintenance is key in keeping your wood boiler running clean and efficiently year after year.  This...

$192.76
A200 Alternative Heating Boiler Treatment - revised
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PRODUCT TYPE: Wood Furnace Parts & Accessories

MANUFACTURER: AH&S

Product Description We have discontinued this product but don't fear, we have TWO other excellent products to choose from: ProTech300 & AmTech300 Both are excellent choices to balance your pH and condition your wood boiler water! Typical Applications Outdoor wood...

$0.00
Woodmaster 6500Maintenance Kit - Includes 18' Fire Rope, 3 Fan Cover, 2-1 gal. AmTech300 & 1 RTV Silicone, 10 oz
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PRODUCT TYPE: Wood Furnace Parts & Accessories

MANUFACTURER: Alternative Heating & Supplies

Product Description This kit is all you need to keep your WoodMaster 6500 Model stove working like the day you bought it!  Doing yearly maintenance is key in keeping your wood boiler running clean and efficiently year after year.  This...

$172.76

Hardy Wood Boilers Parts

Hardy wood boilers are built for long-term performance. But like any heating system, they require reliable replacement parts and regular maintenance to operate efficiently. At Alternative Heating & Supplies, you’ll find a wide selection of Hardy-compatible boiler parts and cleaners designed to keep your system running safely and effectively. From essential components like solenoids and blowers to water treatment solutions and maintenance kits, our inventory supports everything from routine upkeep to full system repairs.

Hardy Boiler Parts Available

From electrical components and controls to combustion components and plumbing parts, ALT Heat has a wide selection of replacement parts and accessories to keep your Hardy outdoor wood furnace running efficiently and effectively. These high-quality replacement parts are compatible with all Hardy wood boiler models and cost less than OEM parts.

Replacement Parts for Reliable Performance

Electrical Components and Controls

Wood boilers consist of a network of sensors and wiring that help tie everything together. From solenoids, which play a key role in regulating fuel and airflow, to aquastats and controllers that help monitor water temperature and activate pumps, replacing worn or outdated parts, sensors, and wiring helps improve efficiency and extend the life of your Hardy boiler.

Airflow and Combustion Components

These parts are crucial for ensuring any wood boiler has a steady supply of air to support proper combustion, which affects heat output and efficiency. From blowers and fans to draft-control parts to door seals and gaskets, these common airflow and combustion components help optimize burn quality and keep any Hardy boiler operating safely and reliably.

Circulation and Plumbing Parts

Often described as the backbone of any boiler, these parts are essential to the system's ability to distribute heat effectively. Circulation pumps keep heated water moving throughout the system and help ensure even heat delivery, while flanges and fittings provide secure, leak-free connections. Heat exchangers are one of a boiler's most important components, helping transfer energy from the boiler to the water or air that's being heated. Many Hardy boiler systems also rely on blowers, pumps, and seals as part of a universal solution to maintain proper airflow and heat transfer.


Why Choose Alternative Heating & Supplies for Hardy Parts?

Aside from a wide inventory of in-stock parts and accessories available at competitive prices, you'll receive expertise that you won't get anywhere else when you work with ALT Heat. Aside from manufacturing affordable, high-quality replacement parts, you can count on receiving high-level support and service to ensure your needs are met, whether you're a DIYer or a seasoned professional. We also offer fast shipping and free shipping on orders over $199.99. It's all part of the ALT Heat difference.

Frequently Asked Questions

What parts commonly need replacement on a Hardy wood boiler?

Common replacement parts for a Hardy wood boiler include pumps, thermostats, and water system components.

How often should Hardy boiler parts be maintained or replaced?

It's best practice to perform an inspection and tune-up on your Hardy boiler annually before the winter months, repairing warped, cracked, or failing parts as needed rather than on a fixed schedule.

Are these parts compatible with all Hardy boiler models?

Yes, ALT Heat supplies high-quality Hardy heater parts compatible with boiler models.

What happens if I can't find my part?

Contact ALT Heat and one of our associates will help you locate the right part.