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ETC Shield
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PRODUCT TYPE: Wood Furnace Parts & Accessories

MANUFACTURER: WoodMaster

Product DescriptionWoodMaster ETC Shield and UV Cover. This is a Plastic ETC Shield is used with the WoodMaster 3300, 4400, 5500 and 6500 Models. Extremely easy to Install. Helps keep the elements away from the control panel, protects from water...

$49.99$38.50
ProTech300 Outdoor Wood Boiler Water Treatment - 4 Pack
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PRODUCT TYPE: Wood Furnace Parts & Accessories

MANUFACTURER: Alternative Heating & Supplies

Product Description ProTech300 Boiler Treatment - Has been designed to be used in boiler treatment programs at a lower cost, yet exceeding all other brands on the market with having three levels of protection.  Adding 1 gallon of ProTech300 to...

$159.80
Woodmaster 4400 Maintenance Kit with Protech300
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PRODUCT TYPE: Wood Furnace Parts & Accessories

MANUFACTURER: Alternative Heating & Supplies

Maintenance Kit - 4400 Includes Fire Rope for 4400, 1- Fan Cover FC546, 1- Tube of RTV Silicone and One Gallon Protech 300 The WoodMaster 4400 Yearly Maintenance Kit has everything you will Need to Tune Up your WoodMaster! The Yearly...

$89.89
Protech300 Yearly Maintenance Kit: 2 ProTech300 and 1 Test Kit
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PRODUCT TYPE: Wood Furnace Parts & Accessories

MANUFACTURER: Alternative Heating & Supplies

Product Description ProTech 300 Boiler Treatment - Has been designed to be used in boiler treatment programs at a lower cost, yet exceeding all other brands on the market with having three levels of protection.  Adding 1 gallon of ProTech...

$109.93
CF205 2-Pack  System Cleaner & Flush for Outdoor Wood Boilers
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PRODUCT TYPE: Wood Furnace Parts & Accessories

MANUFACTURER: Alternative Heating & Supplies

Product Description CF205 System Cleaner has been specifically designed for safely cleaning outdoor & indoor wood boilers with mild steel and/or stainless steel construction. CF205 will safely remove deposits within the system that compromise boiler efficiency and promote corrosion. CF205...

$55.90
NBK 1TDN5 Blower Compatible with Dayton 1TDN5
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PRODUCT TYPE: Wood Furnace Parts & Accessories

MANUFACTURER: NBK

Product Description Dynamically balanced, the NBK Blower mounts in any position and operates with minimal noise and vibration, to maintain CFM at higher static pressures. Open motor has cast-aluminum end shields for greater heat dissipation, resulting in less downtime and longer...

$99.99$75.99
Snap Disc Manual Reset
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PRODUCT TYPE: Wood Furnace Parts & Accessories

MANUFACTURER: Dormeyer

Product DescriptionSnap Disc with Manual Reset, snap switch thermostats are bimetal mechanical thermostats that function via the thermal expansion and contraction of a bimetal disc that “snaps” from a convex to a concave shape at a set temperature. When the...

$39.99$31.55
Complete Front Door Assembly for Wood Master 4400 & 546
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-8%
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PRODUCT TYPE: Wood Furnace Parts & Accessories

MANUFACTURER: WoodMaster

Product Description A direct replacement for WoodMaster 4400 & 546 Outdoor Wood Furnaces. They are designed to be air-cooled. *This item is shipped directly from the manufacturer and takes about 2 weeks for Delivery, unless pickup is arranged.* Typical Applications Wood...

$949.00$879.00
Woodmaster 5500 Maintenance Kit with Protech300
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PRODUCT TYPE: Wood Furnace Parts & Accessories

MANUFACTURER: Alternative Heating & Supplies

Maintenance Kit - 5500 Includes Fire Rope for 5500, 2- Fan Covers FC546, 1- Tube of RTV Silicone and One Gallon Protech 300 The WoodMaster 5500 Yearly Maintenance Kit has everything you will Need to Tune Up your WoodMaster! The...

$110.87
Fan Blower Wire
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PRODUCT TYPE: Wood Furnace Parts & Accessories

MANUFACTURER: AH&S

Product DescriptionFan Blower Wire is used to connect the fan blower to the laminated solenoid on a wood furnace. It is 20" in length with a spade connector and protective sheathing.Typical ApplicationsWood furnacesFeatures 14AWG Heat rated 200 degrees F Water...

$11.99$8.99
1" Fire Door Rope Kit For WM5500
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PRODUCT TYPE: Wood Furnace Parts & Accessories

MANUFACTURER: Alternative Heating & Supplies

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 knit rope,...

$17.91
Fan Cover Model 328 for Fan 4C012
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PRODUCT TYPE: Wood Furnace Parts & Accessories

MANUFACTURER: AH&S

Product DescriptionFC328 Fan Cover for fan Model 4C012 or equivalent is a simple device that works effectively on keeping the air out and saves wood and reduces smoke. This is a rubber fan cover that covers most Dayton Fans to...

$29.99$19.99
Protech300 Boiler Treatment and Test Kit
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PRODUCT TYPE: Wood Furnace Parts & Accessories

MANUFACTURER: Alternative Heating & Supplies

Product Description This yearly maintenance kit includes an our outdoor wood boiler treatment ProTech300 for rust, corrosion and scale prevention as well as a test kit to test nitrite levels and pH. A great way to keep your furnace running...

$64.94
1" Fire Door Rope Kit For WM4400
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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...

$15.92
WoodMaster Replacement Fan Switch
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PRODUCT TYPE: Wood Furnace Parts & Accessories

MANUFACTURER: WoodMaster

Product DescriptionWoodMaster Fan Switch - is used with the ETC Panel on the WoodMaster 3300, 4400, 5500 and 6500 models.Typical ApplicationsWoodMaster stovesFeatures Extremely easy to install

$23.43
Velo 150 Circulating Pump
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PRODUCT TYPE: Heating & Plumbing

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...

$269.99
1" Fire Rope Kit 20' Length
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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...

$39.80
WoodMaster Wiring Harness for Single Blower
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-13%
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PRODUCT TYPE: Wood Furnace Parts & Accessories

MANUFACTURER: WoodMaster

Product Description Stove Harness - Single Blower. this will work with the WoodMaster 3300 and 4400. Does not come with temperature probe or water float. AQ305 and WL001 sold separately.  Typical Applications Outdoor WoodMaster furnaces Features Complete Wiring Harness For...

$157.99$137.95
1" Fire Rope Kit 12' Length
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PRODUCT TYPE:

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...

$23.88
MolyArmor 350 pH Test Kit
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PRODUCT TYPE: Wood Furnace Parts & Accessories

MANUFACTURER: WoodMaster

Product Description MolyArmor 350 PH Test Kit. Test your PH levels easily and accurately! This test kit is designed to test the PH levels in your boiler fill water. This test kit works only with MolyArmor 350 Corrosion Inhibitor This...

$28.95
Velo 100 Circulating Pump
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PRODUCT TYPE: Heating & Plumbing

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...

$214.99
WoodMaster Slide Rod Replacement Handle
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-24%
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PRODUCT TYPE: Wood Furnace Parts & Accessories

MANUFACTURER: WoodMaster

Product DescriptionInsulated handle works for most wood stoves.Overall length 3 1/2"Diameter 1 1/2"1/2" handle hole and about 2" of depth and the 3/8 course thread screw downTypical ApplicationsWood furnaces and stoves

$20.99$15.99
Fan Cover for Draft Fan 2-Pack
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PRODUCT TYPE: Wood Furnace Parts & Accessories

MANUFACTURER: Alternative Heating & Supplies

FC546 Fan Cover is an simple device that works effectively on keeping the air out and saves wood and reduces smoke. This is a rubber fan cover that covers most Dayton Fans to stop the air flow into wood furnaces. This is...

$37.98
WoodMaster Wiring Harness for Double Blower - WH5500
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-14%
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PRODUCT TYPE: Wood Furnace Parts & Accessories

MANUFACTURER: WoodMaster

Product Description Stove Harness - Double Blower. this will work with the WoodMaster 5500 Does not come with temperature probe or water float. AQ305 and WL001 sold separately. Typical Applications Outdoor WoodMaster furnaces Features Complete Wiring Harness For WoodMaster 5500...

$154.99$134.80

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.