CleanFire 300 Outdoor Wood Furnace

The CleanFire 300 is the smallest of the CleanFire series and comes equipped with a titanium-enhanced stainless steel firebox which provides excellent heat transfer and is designed to last a lifetime. This product was designed with you in mind and includes additional features such as: air delivery system, vertical Easy View heat exchanger, air charge tube and the FireStar Combustion Controller.

A WoodMaster outdoor furnace offers all of the benefits of heating with wood without the problems associated with indoor wood burning. No more messy firewood in your house, indoor smoke, threats of a chimney fire, bugs and more.

The CleanFire 300 is EPA Step 2 Certified.

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Overall Efficiency (LHV) – 88.4%*
Overall Efficiency (HHV) – 82.2%*
Manufacturers Rated Heat Output Capacity** – 150,000 Btu/hr
Heat Output (12 hr) – 66,894 Btu/hr


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*Efficiencies are determined under the same test conditions using higher heating value, lower heating value and overall efficiency. **Based on EPA qualifying test.


Furnace Specifications

  • Firebox Volume: 10 cubic ft
  • Firebox Dimensions: 28″L x 29″H x 21″W
  • Door: 16″W x 16″H
  • Ash Cleanout Door: 18″W x 9″H
  • Water Capacity: 150 gal.
  • Weight: 1,365 lbs
  • One set of 1-1/4″ Supply and Return Ports
  • Furnace Options and Accessories: LED Light Kits

CleanFire Base and Dimensions Illustration


Copper Bronze
Copper | Bronze

Ecl Charcoal
Charcoal | Bronze

Ecl Green
Green | Bronze

Ecl Taupe
Taupe | Bronze


Features & Benefits

Easy, Convenient Operation

The FireStar combustion controller constantly monitors how the wood is burning and automatically adds air where and when it’s needed for the cleanest, most efficient combustion.

  • Reserve Mode – reserves a portion of the previous wood load so you’ll never have to relight a fire
  • Burning Time Monitor – helps to estimate how much wood is left
  • Clean Reload – can eliminate smoke when you open the firebox door to add wood
  • Text Alerts – enable this feature if you want to be notified when it’s time to add wood

The FireStar Controller with onboard Wi-Fi keeps you informed of your furnace’s performance and operation. View operational information and receive text alerts on your smartphone or computer. Watch a live demo at MyFireStar.com/demo.

Firestar Demo Button

Top Performance

Super-heated gases enter the round chamber of the Afterburner and swirl in a turbulent vortex, creating a Fireball and allowing enough time for complete combustion to occur.

Easy Access

The patented vertical Easy View Heat Exchanger with hinged door provides full access without the use of tools.


With the titanium-enhanced stainless steel firebox, there is zero corrosion and a lifetime of use, no matter what kind of firewood you burn.


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