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Yearly Maintenance Kit 8 Feet of 1" Fire Rope with Protech300
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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
3/4" Flange Set
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-7%
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PRODUCT TYPE: Wood Furnace Parts & Accessories

MANUFACTURER: AH&S

Product Description 3/4" FNPT - includes 2 flanges, 4 bolts, & 4 nuts, for circulating pumps. Typical Applications For most Circulating Pumps Features 3/4" NPT Flange Set Easy-On, Easy-Off with a common adjustable wrench Includes Pair of Flanges, Four Bolts,...

$15.99$14.99
ETC Black Box
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PRODUCT TYPE: Wood Furnace Parts & Accessories

MANUFACTURER: WoodMaster

Product DescriptionThe ETC Black Box can be installed behind the ETC panel of a WoodMaster Outdoor Furnace to protect all of the internal wirings of the boiler.Typical ApplicationsOutdoor WoodMaster Wood FurnacesFeatures Protects all of the internal wirings of the boiler...

$59.99$44.95
Solenoid Bracket - Square
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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 SQUARE shoot. (FN446, FN004, FN1TDP7 and the FNA166)Typical ApplicationsIf building your own Outdoor Wood Furnace this can be used along with:...

$24.99$17.99
WoodMaster 5500 Front Door Complete Assembly
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PRODUCT TYPE: Wood Furnace Parts & Accessories

MANUFACTURER: WoodMaster

Product Description A direct replacement for WoodMaster 5500 Outdoor Wood Furnaces. They are designed to be air-cooled. *This item is freighted and takes about 2 weeks for Delivery. Typical Applications Wood Furnaces Specifications Size: 27" x 27" Features Includes fan...

$1,179.00$899.99
Install Kit with Flanges
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PRODUCT TYPE: Wood Furnace Parts & Accessories

MANUFACTURER: Alternative Heating & Supplies

Product Description INSTkit Install Kit with Flanges-This kit was designed for wood boiler hook-ups. All fittings included in the kit to simplify the order process and to get those hard to find parts. We also took into consideration bleeding the...

$67.99$58.32
WoodMaster Replacement Light Switch - LSW101
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PRODUCT TYPE: Wood Furnace Parts & Accessories

MANUFACTURER: WoodMaster

Product DescriptionWoodMaster Light ON/OFF Switch - is used with the ETC Panel on the WoodMaster 3300, 4400, 5500 and 6500 Models.Typical ApplicationsWoodMaster stovesFeatures Extremely easy to install

$23.99$17.95
Woodmaster 5500 Maintenance Kit with Amtech300
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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
WoodMaster Flat Auger Chain for model 4400 - 27"
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PRODUCT TYPE: Wood Furnace Parts & Accessories

MANUFACTURER: vendor-unknown

Product DescriptionThis is a 27" flat chain for the Auger system made for WoodMaster 4400 Outdoor wood boilerTypical ApplicationsAuger assembly on the WoodMaster 4400 model

$26.95
1" Fire Door Rope Kit For WM6500
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PRODUCT TYPE: Wood Furnace Parts & Accessories

MANUFACTURER: Alternative Heating & Supplies

Product Description 1" Fire Rope to Seal most Outside Wood Furnaces Doors. Outdoor wood boiler fire rope, wood boiler door rope, Fiberglass Rope for Fire door, Stove Door Sealing Rope, knitted fiberglass rope, Fiberglass rope lagging, knit-braided fiberglass rope, fiberglass...

$35.82
Yearly Maintenance Kit 7 Feet of 1" Fire Rope with Protech300
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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 Door Handle
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PRODUCT TYPE: Wood Furnace Parts & Accessories

MANUFACTURER: AH&S

Insulated Door Handle Insulated Handle for most outdoor wood stoves 3 3/4" in length 1 1/2" diameter DescriptionInsulated door handle used for most outdoor wood furnaces. Measures 3 3/4" in length and 1 1/2" in diameter.Typical ApplicationsOutdoor wood furnacesFits the...

$35.99$29.95
Yearly Maintenance Kit 8 Feet of 1" Fire Rope with Amtech300
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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
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
Woodmaster 3300 Maintenance Kit with Amtech300
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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 with Protech300
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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
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
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
Complete Auger Grate Assembly for Woodmaster 4400
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-8%
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PRODUCT TYPE: Wood Furnace Parts & Accessories

MANUFACTURER: WoodMaster

Product DescriptionAn ash auger that can be added to the Wood Master 4400 model. This is a complete auger kit, with everything you will need. Makes cleanout a snap! Eliminates the need to shovel ash and hot coals from the...

$1,399.99$1,289.99
Install Kit with Flanges Sharkbite
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-6%
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PRODUCT TYPE: Wood Furnace Parts & Accessories

MANUFACTURER: Alternative Heating & Supplies

Product Description INSTkitsb  SharkBite Install Kit with Flanges-This kit was designed for wood boiler hook-ups. All fittings included in the kit to simplify the order process and to get those hard to find parts. We also took into consideration bleeding...

$75.99$71.75
Yearly Maintenance Kit 6 Feet of 1" Fire Rope with Protech300
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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
7/8" Silicone Coated Fiberglass Firedoor Rope - sold per foot
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PRODUCT TYPE: Wood Furnace Parts & Accessories

MANUFACTURER: WoodMaster

Product Description7/8" Fiberglass Fire Rope coated in silicone to seal Outdoor Wood Furnaces doors. This is a braided high quality product which is made in the USA!Typical ApplicationsWood boilers and furnacesCleanfire gasification outdoor wood boilersFeatures: Made in the USA Sold...

$6.99
WoodMaster Flat Auger Chain for model 5500 - 30"
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PRODUCT TYPE: Wood Furnace Parts & Accessories

MANUFACTURER: vendor-unknown

Product DescriptionThis is a 30" flat chain for the Auger system made for WoodMaster 5500 Outdoor wood boilerTypical ApplicationsAuger assembly on the WoodMaster 5500 model

$29.95
Install Kit for Outdoor Wood Furnace with Stainless Steel Crimp Rings & Flanges
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-15%
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PRODUCT TYPE: Wood Furnace Parts & Accessories

MANUFACTURER: Alternative Heating & Supplies

Product Description INSTkit Install Kit for outdoor wood furnace with Stainless Steel Crimp Rings & Flanges-This kit was designed for wood boiler hook-ups. All fittings included in the kit to simplify the order process and to get those hard to...

$67.63$58.02

At Alternative Heating & Supplies, we carry a full selection of WoodMaster boilers, stove parts, and accessories to help you build, maintain, or upgrade your outdoor heating system. Whether you're heating your home, garage, shop, or outbuilding, WoodMaster delivers proven reliability and rugged performance, even in the harshest climates.

A Trusted Name in Outdoor Wood Boilers

WoodMaster is a leading manufacturer of residential outdoor wood boilers and stoves, built for long-term performance, high efficiency, and reduced dependence on fossil fuels. Known for their durability and heating power, WoodMaster systems are ideal for:

  • Homeowners looking for an off-grid or supplemental heat source
  • Contractors and professionals installing systems in homes or outbuildings
  • Rural properties and cold-weather climates needing consistent, affordable heating

WoodMaster boilers are designed for outdoor installation and connected to your existing indoor heating system, providing clean, efficient heat without the mess inside your home.

WoodMaster Boilers Options

We offer the best traditional outdoor wood boilers. These WoodMaster Boilers are great for whole-home heating, garages, shops, or multiple buildings. At ALTheat, we pair our WoodMaster boiler models to match your property’s size and heating needs:

Not sure which unit is best for your setup? Give us a call or browse our DIY Kits to explore your options.

WoodMaster Parts and Replacement Components

Keeping your boiler running at peak performance means having access to quality replacement parts when you need them. At Alternative Heating & Supplies, we stock a wide range of genuine WoodMaster boiler parts, including:

We carry parts compatible with older WoodMaster models and newer units, so whether you're repairing or upgrading, we’ve got the components you need. Using genuine parts helps protect your investment, maximize efficiency, and ensure long-term reliability. 

Why Choose WoodMaster for Outdoor Heating?

WoodMaster boilers are built for performance and peace of mind. Benefits include:

  • Proven durability in extreme conditions
  • High wood-burning efficiency that reduces fuel costs
  • Versatile heating capabilities for homes, workshops, greenhouses, and more
  • Expandable setups for multi-building heating with a single unit

From simple residential installations to larger homesteads or small commercial operations, WoodMaster offers reliable heat when and where you need it.

WoodMaster Accessories to Enhance Performance

Want better control or easier installation? We also carry WoodMaster-compatible accessories to help you fine-tune your heating system:

  • Digital controls & thermostats
  • Fan blowers for cleaner burns
  • Insulated PEX pipe and fittings
  • Mounting hardware, gauges, and valves

These add-ons improve overall system efficiency, reduce heat loss, and make DIY installs much easier.

Trust Alternative Heating & Supplies for All WoodMaster Products

Alternative Heating & Supplies is proud to be a trusted source for WoodMaster parts and systems. We offer fast shipping and in-stock inventory, expert phone support and video walkthroughs, and resources for homeowners and professional installers. Check out our video tutorials or call our team for help selecting the right part or accessory. 

WoodMaster Heating Systems FAQs 

What size WoodMaster boiler do I need for my home or shop?

It depends on your square footage, insulation, and climate. Call us for sizing help or use our online guides for rough estimates.

Are the parts on this page compatible with older WoodMaster models?

Yes. We carry both current and legacy parts. Be sure to check your model number, or contact us if you're unsure.

How often should WoodMaster boilers be serviced or maintained?

We recommend a seasonal check-up. Cleaning heat exchangers, inspecting pumps, and verifying seals and components before winter hits.

Can I install a WoodMaster boiler myself, or do I need a contractor?

Many experienced DIYers handle the install themselves using our DIY kits. For larger or complex systems, a professional installer may be recommended.

Do you offer support if I’m not sure which WoodMaster part I need?

Absolutely. Get in touch with our team—we’ll help you find the exact part for your system.