Mobile vs. Stationary Air Curtain Burners: How to Choose

Mobile vs. Stationary Air Curtain Burners: Which Setup Fits Your Operation?

Choosing an air curtain burner isn’t just about how much wood waste you process. It’s also about how your operation moves. Does your work take you from jobsite to jobsite, or does material come to you?

If you’re constantly on the move, a mobile air curtain burner may be non-negotiable. If it makes more sense to haul material back to a central yard, a stationary setup could save you more in the long run. This guide explains the difference so you can choose the right Air Burners system.

Note: “portable” and “mobile” are used interchangeably here. Both mean built to be relocated.

What Is a Mobile Air Curtain Burner?

All Air Burners systems are portable. Each is built on a trailer or skid base, so it can be relocated with the right support equipment. A portable air curtain burner is one set up for frequent relocation, so a crew can move it between sites and get running quickly. That lets you process wood and vegetative debris near where it’s generated instead of hauling it away.

How a system travels depends on the model:

Boss Series

• BurnBoss tows behind a heavy-duty pickup with a standard 2 ⁵⁄₁₆” ball hitch.
• TrackBoss is self-propelled on tracks for on-site movement, with no tow vehicle needed. Road transport requires a trailer.
• CharBoss is trailer-mounted and tows behind a heavy-duty pickup with a standard 2 ⁵⁄₁₆” ball hitch.

Roll-Off FireBox

• Moves via cable hoist or hook-lift truck (ANSI Z245.60 spec), the same truck already hauling your dumpsters.

FireBox Series (100, 200, 300)

• The 100 and 200 Series require a flatbed, lowboy, slide-axle, or RGN (removable gooseneck) trailer with an appropriate heavy tow vehicle.
• The 300 Series requires the same trailer options, plus oversize road permits.

Go as big as your equipment can move. A bigger burner processes more wood per hour, and the more you burn per hour, the less each ton costs. So check what your truck or trailer can handle, then choose the largest machine that fits. You get a lower cost per ton without buying new equipment just to relocate it.

Need more capacity later? Add FireBoxes, not staff. One operator can run up to three at once, all fed by a single loader, so you can double or triple your output with the same crew.

What Is a Stationary Air Curtain Burner?

Any Air Burners system can also operate primarily from one fixed location. A stationary air curtain burner is set up once at a permanent site where wood waste is generated or arrives, the material is processed as it’s delivered rather than hauled elsewhere.

You choose a location, prepare a burn area, and design the site around how material flows in. Most operations plan for:

• Loader access and staging space: Room for incoming loads to be dropped, sorted, and fed into the burner without congestion.
• A clear, stable burn area: Adequate clearance from structures, vegetation, and property lines, with ground that can support equipment and loader traffic.

Neither option is inherently better. The goal is to match the equipment to how material actually moves through your operation.

When a Portable Air Curtain Burner Fits Best

A portable system makes sense when wood waste is spread across locations that keep changing. Moving the burner to the material is easier than hauling bulky debris away.

• Land clearing: Contractors may work one development site this month and a project miles away the next, generating large volumes of trees, logs, brush, stumps, and limbs. Processing at or near the site reduces loading and hauling.
• Disaster recovery: Storms generate debris wherever the damage occurs, often far from a permanent facility. Mobile equipment can stand up close to concentrations of storm-damaged trees and vegetation.
• Forestry: Projects span large areas, making it more practical to move equipment than to truck bulky slash and woody residue long distances.
  Right-of-way and utility clearing: Utility, roadside, rail, and pipeline work generates vegetation along miles of corridor, so mobility becomes a top selection criterion.
• Public land managers: Agencies such as the BLM, U.S. Forest Service, state forestry departments, and park districts often treat slash and thinning debris at remote sites, where building roads to haul it out can cost more than processing it in place.
• Tribal forestry and land management: Fuel-reduction and forest-health projects can span large tribal landscapes. Processing near the treatment area, where permitted, avoids long hauls.
• Wildfire mitigation and fuel reduction: Crews thinning forests and clearing defensible space move from project to project, often where trucks can’t easily reach, so the burner follows the work.

When a Stationary Air Curtain Burner Fits Best

A stationary setup makes sense when material naturally flows back to one central location.

• Tree-service companies: Crews work at different properties all day but return to the same yard with branches, logs, and trunks. Processing there, where permitted, can eliminate the cost of hauling to an outside facility.
• Landscaping companies: Debris from dozens or hundreds of commercial accounts is consolidated at one yard. Each job is modest, but the combined volume is substantial.
• Municipal green-waste sites: Residents, public works, and parks crews drop off yard debris and storm-damaged trees at one location.
• Public land managers and tribal forestry programs: Slash and thinning debris can be consolidated at a central staging area instead of treated pile by pile in the field.
• Wildfire mitigation crews: Thinning and defensible-space crews that haul material to a common collection point can process it there.
• Transfer stations, landfills, and recycling facilities: Wood waste arrives from contractors, haulers, municipalities, and residents. Burning clean wood on-site can cut hauling and tipping costs and preserve landfill airspace.
• Other regular wood and vegetative waste generators: Demolition contractors, sawmills, pallet manufacturers, orchards, vineyards, and farms can all benefit when enough clean wood arrives at one place, often enough.

Four Questions to Guide Your Decision

1. Where is the waste generated? If debris is already brought back to one yard, a stationary system may fit naturally. If hauling from large projects is costly, mobility may offer more value.
2. How often will the equipment need to move?
   • Frequent (daily, weekly, or between projects): make transport and setup top priorities.
   • Occasional (a few times a year): a larger or less mobile configuration may still work.
   • Rare or never: mobility may add cost without much value.
3. How much material do you process, and what does it look like? A contractor handling large logs and storm-damaged trees every day has very different needs than an operation burning mostly brush, even at similar volumes. Estimate average and peak daily volume, typical material size, project duration, seasonal swings, and expected growth.
4. What do your site conditions allow? Make sure you have room to operate, a way to get equipment and material in, and clear space from structures and overhead power lines. Then confirm local rules before you choose a system.

Permits and Regulations: What to Check for Each Setup

Air curtain burner requirements vary by state, county, and sometimes municipality. Confirm what applies to your location.

Hauling vs. Relocating: Which Is More Cost-Effective?

There’s no universal answer. Mobility has a cost, but so does hauling debris. Compare moving the burner to the material against moving the material to the burner, based on distance, number of truckloads, labor, fuel, truck availability, disposal or staging fees, and how often projects change location.

For a large land-clearing project, moving the burner once may be far more efficient than hauling hundreds of loads. For a tree company whose trucks return to the same yard every evening, moving the burner between jobs offers little benefit, and a stationary system may be the better value.

The most useful comparison isn’t the purchase price of two machines. It’s the total cost of running each one in your actual workflow: equipment, transport, setup, labor, fuel, and downtime, minus the hauling and disposal fees you no longer pay. Also consider how many hours a year the machine will really run. The option that costs more upfront may be cheaper over several years.

Can You Use Both? Combining Portable and Stationary Setups

The choice isn’t always either/or. Because every Air Burners system is portable, many operations use a hybrid approach:

• A home-base burner with flexibility: A tree company can run a system at its yard for daily debris, then move it to a large job site when a big removal or storm cleanup comes up.
• Seasonal relocation: A contractor or municipality can keep a unit at a central site most of the year and redeploy it for storm recovery or seasonal clearing.
• Adding capacity as you grow: If you outgrow one machine, add another at the same site or on a project instead of replacing the first. One operator can run up to three FireBoxes at once, all fed by a single loader, so you can double or triple your throughput without adding crew.

Buy for the work you do most, and count on portability for the exceptions. You won’t pay for mobility you rarely use, but it’s reassuring to know it’s there.

Two Common Scenarios

1. A tree-service company with a home yard. Several crews work different properties each day, and every truck returns to the same yard at the end of the shift. Material arrives in a steady stream, the site is already permitted for operations, and the company is paying to haul loads out. A stationary setup fits: process material where it already collects, and cut out the hauling.
2. A land-clearing contractor on a multi-month project. The site generates a large volume of trees, stumps, and brush over a short period, miles from any disposal facility, and the next project will be somewhere else. A portable setup fits: bring the burner to the material, process it where it’s generated, and move on when the job is done.

The deciding factor in both cases isn’t the machine. It’s where the material is and whether that location changes.

Talk with Air Burners about your material volume, job sites, disposal costs, and mobility requirements to determine which system best fits your operation.