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ProTech 300 Boiler Water Treatment
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PRODUCT TYPE: Wood Furnace Parts & Accessories

MANUFACTURER: AH&S

ProTech300 is a new and improved wood boiler water treatment that goes beyond standard solutions to safeguard your boiler from rust, corrosion, and scale. By combining three powerful active ingredients—nitrite, phosphonate, and an anodic inhibitor—ProTech300 delivers unmatched performance and peace...

$44.99
High Temperature Silicone 10 Oz
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-24%
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PRODUCT TYPE: Wood Furnace Parts & Accessories

MANUFACTURER: AH&S

Product DescriptionSILA-SEAL Professional Grade Silicone Sealants are non-slumping, one-part 100% silicone rubber acetoxy sealants that cure to a tough, rubbery solid upon exposure to moisture in the air (RTV-room temperature vulcanizing) with long-term flexibility and durability. All SILA-SEAL Professional Grade...

$12.99$9.99
AmTech300 Wood Boiler Treatment Corrosion Inhibitor - 1 gallon
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PRODUCT TYPE: Wood Furnace Parts & Accessories

MANUFACTURER: AH&S

Looking for a reliable, budget-friendly solution to protect your wood boiler? AmTech300 delivers two layers of powerful protection—nitrite and phosphonate-based chemistry—offering the same results as top-tier brand-name treatments without the premium price tag. Designed to prevent rust, corrosion, and scale,...

$34.99
Fan Cover Model 546 for Draft Fans
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PRODUCT TYPE: Wood Furnace Parts & Accessories

MANUFACTURER: AH&S

Product DescriptionFC546 Fan Cover 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 stop the airflow into wood furnaces....

$21.99$18.99
Dormeyer 4X240 / Dayton 2005 M-1 Laminated Solenoid
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-28%
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PRODUCT TYPE: Wood Furnace Parts & Accessories

MANUFACTURER: Dormeyer

Product Description 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,...

$65.99$47.95
MolyArmor 350 Corrosion Inhibitor for Wood Boiler
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PRODUCT TYPE: Wood Furnace Parts & Accessories

MANUFACTURER: WoodMaster

Product DescriptionMolyArmor 350 Corrosion Inhibitor provides excellent corrosionprotection when properly maintained and the moly level neverdrops below 350 ppm. It is easy to test for maintenance levelswith a test strip (no messy chemicals for testing). One gallon ofMolyArmor 350 Corrosion...

$59.99$49.99
NBK 1TDP7 Blower Compatible with Dayton 1TDP7
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-31%
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PRODUCT TYPE: Wood Furnace Parts & Accessories

MANUFACTURER: NBK

Product Description Dynamically balanced, the NBK Replaces the Dayton 6FHX8 (4C446) Blowers, mounts in any position and operates with minimal noise and vibration to maintain CFM at higher static pressures. This is probably the most used blower in the outdoor...

$123.99$85.99
300 Test Kit
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PRODUCT TYPE: Wood Furnace Parts & Accessories

MANUFACTURER: AH&S

Product Description Test Nitrite levels easily and accurately just like the lab! This test kit is designed to test the Nitrite levels in your boiler fill water. It is an easy and accurate means to determine the level or amount...

$22.00$19.95
Taco 0011 BF4-J Circulating Pump
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-9%
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PRODUCT TYPE: Wood Furnace Parts & Accessories

MANUFACTURER: Taco

Product Description The High-Velocity series Taco 0011 Cartridge circulator is designed for high head/medium flow applications in residential or light commercial hydronic heating, radiant heating, and chilled water cooling systems. The unique ACB anti-condensate baffle with ambient airflow prevents the...

$479.99$438.21
CF205 System Cleaner & Flush For Outdoor Wood Boilers
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PRODUCT TYPE: Wood Furnace Parts & Accessories

MANUFACTURER: AH&S

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...

$27.95
Taco 009 BF5-J Circulating Pump
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PRODUCT TYPE: Wood Furnace Parts & Accessories

MANUFACTURER: Taco

Product Description: Taco 009 BF5-J Pump (Cast Iron pump with a Bronze Cartridge) - is an upgraded and superior pump then the standard Taco 009 and equivalent base model pumps. The Bronze Cartridge increases the life of the pump and...

$459.99$405.96
NBK 4C446 Blower Compatible with Dayton 6FHX8, 4C446
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-29%
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PRODUCT TYPE: Wood Furnace Parts & Accessories

MANUFACTURER: NBK

Product Description Dynamically balanced, the NBK Replaces the Dayton 6FHX8 (4C446) Blowers, mounts in any position and operates with minimal noise and vibration to maintain CFM at higher static pressures. This is probably the most used blower in the outdoor...

$119.99$85.99
Thermistor Wire for Aquastat, Woodmaster, Dixell - AQ305
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-16%
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PRODUCT TYPE: Wood Furnace Parts & Accessories

MANUFACTURER: AH&S

Product Description Thermistor 3" Probe with 6' wire to monitor temperature. Typical Applications Used on wood furnaces with electronic control panels Features Works with Dixwell (AQ004 & Woodmaster WMAQ004) and Love controller (AQLove) It is 3" long Has a 6'...

$25.99$21.99
Green LED Light Bulb
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PRODUCT TYPE: Wood Furnace Parts & Accessories

MANUFACTURER: WoodMaster

Product DescriptionGreen LED Light Bulb and assembly complete. Direct replacement for WoodMaster units. If your light looks a little different, no problem. WoodMaster has changed companies for this light and it will hookup easily. This light is much brighter than...

$28.78$19.99
NBK 1TDP1 Blower Compatible Dayton 1TDP1
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PRODUCT TYPE: Wood Furnace Parts & Accessories

MANUFACTURER: NBK

Product Description Dynamically balanced, the NBK replaces Dayton Blower 1TDP1 blower mounts in any position and operates with minimal noise and vibration, to maintain CFM at higher static pressures. Motors have cast aluminum end shields for greater heat dissipation and...

$139.99$85.99
Woodmaster ETC Control Panel
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PRODUCT TYPE: Wood Furnace Parts & Accessories

MANUFACTURER: WoodMaster

Product DescriptionWoodMaster ETC Panel is used with the WoodMaster 3300, 4400, 5500 and 6500 models.Typical ApplicationsWood furnace electronic controllerFeatures Extremely easy to install with the quick connect. (seen in Picture) Comes pre programed and ready to go.

$399.99$310.95
Draft Spring
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-34%
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PRODUCT TYPE: Wood Furnace Parts & Accessories

MANUFACTURER: AH&S

Product DescriptionThis is the draft spring used in our DIY Kits as well as on all Wood Master furnaces. Coil length 5/8"Full spring Length 1 1/2"Typical ApplicationsWood Master furnaces

$8.99$5.99
AmTech300 2 Pack Boiler Treatment Rust Inhibitor for Outdoor Wood Boilers
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PRODUCT TYPE: Wood Furnace Parts & Accessories

MANUFACTURER: AH&S

AmTech 300 Wood Boiler Water Treatment is an inexpensive alternative to brand-name boiler treatment chemicals at half the cost. Our AmTech 300 Boiler Treatment will: It offers 2 Levels of Protection. Protect your wood boiler from rust, corrosion, and scale...

$65.99
WoodMaster Digital Aquastat
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PRODUCT TYPE: Wood Furnace Parts & Accessories

MANUFACTURER: Dixell

Product DescriptionWoodMaster Digital Controller - A Dixell Controller XR30CX, specifically programmed to be used with the WoodMaster Outdoor Wood Furnaces. Used to control water temperature and water temperature differentials.The WoodMaster Aquastat/Temperature gauge. Controls wood boiler temperatures. It is preset to...

$159.99$139.95
WoodMaster Replacement Float Assembly for Water Level Light Red Wire
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PRODUCT TYPE: Wood Furnace Parts & Accessories

MANUFACTURER: WoodMaster

Product DescriptionWoodmaster Float that is used to tell you if your low in water.Water level float which can turn on light (WL302) to indicate water level is low.Typical ApplicationsCommonly used with the WoodMaster modelsFeatures 1" thread 6-foot wire for easy...

$112.99
NBK Blower 4C004 Compatible with Dayton 4C004
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-47%
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PRODUCT TYPE: Wood Furnace Parts & Accessories

MANUFACTURER: NBK

Product DescriptionThis OEM blower features a rectangular outlet shape and is designed with a flange. It features a shaded-pole motor and a totally enclosed motor enclosure. It offers all-position mounting. Steel housing material with painted housing finish.Typical ApplicationsThis Fan is...

$159.99$85.99
Vent Cap for Wood Boilers
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-20%
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PRODUCT TYPE: Wood Furnace Parts & Accessories

MANUFACTURER: AH&S

Product DescriptionVent Cap for outside wood Boilers. Helps reduce water evaporation. To install simple drop over boiler fill port.Typical ApplicationsOutdoor wood boilersFeatures Helps reduce water evaporation Used for outside wood boilers

$42.99$34.42
Yearly Maintenance Kit 9 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...

$72.89
Woodmaster 4400 Maintenance Kit with Amtech300 - MKit4400-Am.
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PRODUCT TYPE: Wood Furnace Parts & Accessories

MANUFACTURER: Alternative Heating & Supplies

Maintenance Kit - 4400 Includes Fire Rope for 4400, one FC546, RTV Silicone and One Gallon Amtech 300 The WoodMaster 4400 Yearly Maintenance Kit has everything you will Need to Tune Up your WoodMaster! The Yearly Maintenance Kit Includes: Fire...

$79.89

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.