BurnBoss T24 vs. S119R FireBox — Which Air Curtain Burner Do You Need?
One fits behind your pickup. The other eats whole trees. Both turn wood waste to ash in hours instead of weeks — and at a fraction of the cost of grinding and hauling. Flex Equipment Rental carries both the towable BurnBoss T24 for smaller mobile jobs and the roll-off S119R FireBox for high-volume land clearing. Call 814.883.9444 and tell us about your project — we will recommend the right burner.
Spec Comparison: BurnBoss T24 vs. S119R FireBox
| Specification | BurnBoss T24 | S119R FireBox |
|---|---|---|
| Type | Trailer-mounted | Roll-off / cable-hoist |
| Throughput | 0.5–1 ton/hr | 3–5 tons/hr |
| FireBox Dimensions | 12' x 4' x 4' | 19' x 5' x 6' |
| Weight | 9,980 lb | 39,900 lb |
| Engine | 2-cyl diesel | 3-cyl turbo diesel (49 hp Hatz) |
| Fuel Consumption | 0.56 gal/hr | 1.9 gal/hr |
| Towing | Street-legal, heavy-duty pickup | Requires roll-off truck |
| Combustion Temp | 1,800°F+ | 1,800°F+ |
| EPA Compliance | Yes — 40CFR60 | Yes — 40CFR60 |
BurnBoss T24: The Mobile Workhorse
The BurnBoss T24 is a street-legal, trailer-mounted air curtain burner that you can tow behind a standard heavy-duty pickup truck. Its hydraulic lift raises and lowers the fire box for easy loading with an excavator or loader, and the entire unit can be repositioned on-site in minutes.
At 0.5 to 1 ton per hour of throughput and just 0.56 gallons of diesel per hour, the BurnBoss is built for smaller and mid-size burn jobs: wildfire mitigation projects, logging road cleanup, vineyard and orchard debris, small residential land clearing, and brush pile elimination. Its compact size and mobility make it ideal for jobs where you need to move between multiple burn locations on the same property.
S119R FireBox: The High-Volume Machine
The S119R FireBox is a roll-off style air curtain burner designed for serious production. At 3 to 5 tons per hour, it handles whole trees, root balls, and massive debris piles that would take the BurnBoss days to process. The S119R is delivered by truck and left on-site for days or weeks at a time.
This is the machine municipalities and FEMA use for disaster recovery and storm debris cleanup. Its refractory-lined interior and double steel floor are built to withstand continuous, high-volume burning. If you are clearing multiple acres, processing utility right-of-way debris, or diverting wood waste from a landfill, the S119R is the machine for the job.
Cost Comparison: Burning vs. Grinding and Hauling
The economics of air curtain burning are compelling. Traditional grinding operations consume 30 to 100 gallons of diesel per hour, while an air curtain burner uses less than 2 gallons per hour. Add in the cost of trucking chips and debris off-site, and the savings become dramatic.
Air curtain burning eliminates hauling costs entirely. The ash residue is minimal — typically less than 3 percent of the original volume — and can be spread on-site as a soil amendment. Industry estimates suggest air curtain burning saves 50 to 75 percent compared to traditional grinding and hauling methods.
Permits and Regulations in Pennsylvania
Air curtain burners that meet EPA 40CFR60 standards are typically exempt from open burning bans in Pennsylvania because they achieve combustion temperatures above 1,800°F with minimal visible emissions. Both the BurnBoss T24 and S119R meet this standard.
That said, contractors should always check with their local county or township for any additional requirements. Some municipalities require advance notification or a simple permit. Flex Equipment Rental can help guide you through the permitting process — call 814.883.9444 and we will walk you through it.
Which One Should You Rent?
Rent the BurnBoss T24 if: You are handling smaller jobs — under 1 acre of clearing, brush piles, orchard cleanup, or wildfire mitigation. The BurnBoss is also the right choice when you need to move the burner between multiple locations on the same property or between job sites during the same rental period.
Rent the S119R FireBox if: You are tackling large-scale clearing — multi-acre projects, storm response, utility corridor work, or any job producing more than a few tons of wood waste per day. The S119R's throughput will keep your clearing crew productive instead of waiting on the burner.
Frequently Asked Questions
Do I need a CDL to tow the BurnBoss?
The BurnBoss T24 weighs 9,980 pounds and is street-legal with a VIN. In most cases, a heavy-duty pickup truck (3/4-ton or 1-ton) with proper towing capacity can haul it without a CDL. However, check your state and local regulations regarding combined gross vehicle weight ratings (GVWR) to confirm. The S119R at nearly 40,000 pounds requires a roll-off truck for delivery.
Can I burn construction debris in an air curtain burner?
Air curtain burners are designed for clean wood waste — trees, brush, stumps, and untreated lumber. Burning construction debris, painted or treated wood, plastics, or other non-wood materials is generally prohibited and can void EPA compliance. Always check with your local DEP office for specific rules in your area.
How much ash does an air curtain burner produce?
Air curtain burners reduce wood waste to approximately 1 to 3 percent of its original volume in fine ash. This ash is typically pH-neutral and can be spread on-site as a soil amendment or disposed of easily. Compare that to grinding, which leaves 100 percent of the original volume in chips that must be hauled away.
Does Flex Equipment Rental deliver the S119R?
Yes. We handle delivery and pickup of the S119R FireBox using a roll-off truck. Delivery fees depend on distance from our location. The BurnBoss T24 can be picked up at our yard or delivered on a flatbed. Contact us for a delivery quote or call 814.883.9444.
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