CleanFire 700 Outdoor Wood Furnace

If you thought that the cleaner and more efficient outdoor furnaces are, the harder they are to operate, it’s time to think again. The CleanFire 700 is not only EPA Step 2 Certified, it is specifically engineered and designed to be easier to operate than ever before. Equipped with the FireStar combustion controller which constantly monitors how the wood is burning and adds air where and when it’s needed for the cleanest, most efficient combustion.

When you heat your home with a WoodMaster outdoor wood furnace, you’re free of fuel shortages, power outages and just about everything else that makes front page news. You’re also doing the environment a favor by reducing your carbon footprint. Wood is a renewable resource which when burned, results in no net carbon dioxide increase.

The CleanFire 700 is EPA Step 2 Certified.

Tax Credit

Overall Efficiency (LHV) – 89.8%*
Overall Efficiency (HHV) – 83.4%*
Manufacturers Rated Heat Output Capacity** – 245,000 Btu/hr
Heat Output (12 hr) – 146,686 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: 23 cubic ft
  • Firebox Dimensions: 37″L x 44″H x 26″W
  • Door: 21″W x 25″H
  • Ash Cleanout Door: 19″W x 11″H
  • Water Capacity: 330 gal.
  • Weight: 2,036 lbs
  • One set of 1-1/4″ Supply and Return Ports
  • Two sets of 3/4″ Supply and Return Ports
  • Bypass Door and Alarm
  • 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



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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