Slash Piles Don't Just Slow Down the Job. They're Next Season's Wildfire.
No Grinding. No Hauling. No Obstacles.
Eliminate wood waste
Our air curtain burners are a cost-efficient, environmentally-friendly solution to eliminate unwanted wood and vegetative waste 40x faster than an open burn.
Low operating cost
Reduces hauling, grinding, and tipping fees. Available for Purchase or Rental. Ideal for short-term projects or long-term waste management solutions.
return carbon to soil
Our self-contained air curtain burners turn wood and vegetative waste into soil amending ash and Biochar.
What It Actually Costs to Deal With Slash
To eliminate 100 tons of woody debris, here's what the math looks like, based on Air Burners' published cost analysis using the FireBox S330.
What the experts have to say
Trusted by the People Who Fight Fire
"The CharBoss is effective at reducing slash piles without as much smoke and particulates as would be seen from open slash pile burning. It keeps the understory green longer in the growing season so it's less susceptible to fire. With open burning, there's no carbon captured — it just goes off into the atmosphere. It's also a waste of a valuable material. "
— Debbie Page-Dumroese Senior Research Scientist, USDA Forest Service Rocky Mountain Research Station
"It surrounds the fire in a curtain of forced air. That makes the fire burn incredibly hot and incredibly efficient, and coats all of the burning material in a layer of ash. The biochar is eventually used to help improve soil quality and water retention — critical in areas where wildfire got so hot it essentially sterilized the soil. "
— Jonas Parker District Hydrologist & Soil Scientist, Bureau of Land Management
"This equipment fills that gap and allows us to monetize slash. If we can make it from the slash that is already causing a wildfire risk, we'd be solving more than one problem. We need to reconnect the natural biochar cycle that fire suppression has interrupted — and that's what's offered by this machine. "
— Jim Archuleta Retired Soil Scientist, US Forest Servicewhat’s left behind
Slash In. Healthy Soil Out.
Every other slash disposal method removes material from the forest and leaves nothing behind. Air Burners converts it into something the forest actually needs.
Ash and Biochar
3–5% of the original weight of material is processed into soil-amending ash. Spread directly at the log landing or skid trail to restore soil structure and support forest regeneration. No secondary disposal. No hauling. What was a fire hazard becomes a soil resource.
Biochar
The CharBoss automatically converts slash into biochar — a stable, carbon-sequestering soil amendment that rebuilds fire-sterilized soils and supports long-term forest health. Jim Archuleta, a retired US Forest Service soil scientist, put it simply: biochar reconnects the natural nutrient cycle that fire suppression has interrupted. Sell it as a commodity or return it to the land — either way, the slash pile becomes an asset rather than a liability.
who we serve
operations that depend on us
Product & Service Information
FREQUENTLY ASKED QUESTIONS
How does the Air Burners approach compare to open pile burning?
Air Burners machines burn up to 40x faster than open piles, reduce smoke by up to 98%, and produce soil-amending ash and biochar rather than a long-lasting burn scar. Open burning is increasingly restricted or banned in regulated air quality districts.
Air Burners machines meet US EPA 40 CFR 60 requirements, which allows operations to continue on no-burn days in many jurisdictions where open burning is prohibited.
How do we move an Air Burners machine between landings and slash sites?
It depends on the model.
- The BurnBoss tows behind a heavy-duty pickup with a standard 2 ⁵⁄₁₆” ball hitch.
- The TrackBoss is self-propelled on tracks for moving around a site, with no tow vehicle needed, though road transport requires a trailer.
- FireBox 100 and 200 Series units move on a flatbed, lowboy, slide-axle, or RGN trailer, and the 300 Series uses the same trailers and requires oversize road permits.
- The Roll-Off FireBox loads with a cable hoist or hook-lift truck.
Tell us your roads and the equipment you already have, and we’ll help you choose.
What does it cost to eliminate slash compared to hauling it out?
With the BurnBoss, the cost of burning a ton of slash is mostly your labor and loader, plus about half a gallon of diesel to run the burner. The BurnBoss processes about a ton per hour.
At a diesel price of $5 per gallon, for example, the burner’s fuel comes to about $2.50 per ton. Compare that to grinding and hauling, which cost $5,780 for 100 tons to a landfill in Air Burners’ published cost analysis, and often more in remote forest settings where access and distance drive hauling costs up.
What size slash and material can it handle?
Slash, brush, limbs, whole trees, logs, and stumps. The maximum size depends on the model and how you load it, so tell us what you typically process and we’ll match you to the right machine.
What can we do with the ash and biochar?
Biochar and clean ash are natural soil components, and USDA Forest Service research has found that biochar can improve soil structure, water retention, and microbial activity, particularly where high-intensity wildfire has damaged the soil.
Whether you can spread them on public land, and how, depends on the land manager and local rules, so confirm approval before you plan around it.