XM42 vs XL18: Two Famous Names, Two Different Classes

If budget is the deciding factor, the XM42-L is the cheapest way into a real, purpose-built flamethrower. At $595 it is a self-contained handheld that runs on gasoline or a gasoline-diesel mix, with electric pilot ignition and no backpack tank to strap on. For casual recreational use, that is the whole pitch, and it is a legitimate one.

If range, spray duration, build, or professional use matter, the XL18 is in a different class. Its published maximum range is 110 feet or more with a napalm mix, or 80 to 90 feet running straight diesel, against roughly 33 feet published for the XM42 line (a prior-generation Lite figure, but the best number available). The XL18 also carries 3.3 gallons of fuel, which is roughly eight times what a handheld holds, and it is CO2-propelled. You pay almost six times the price and carry five times the weight for that capability. Whether that trade is worth it depends entirely on what you are doing with the tool.

Here is how the two units compare on the numbers that matter, using each maker's published figures as of July 2026:

• Price: XM42-L $595 at xm42.com; XL18 $3,450 direct from Throwflame
• Range: XM42-L roughly 33 feet published (carried over from the prior-generation Lite); XL18 110 feet or more with napalm mix, 80 to 90 feet on diesel alone
• Weight: XM42-L about 9 pounds; XL18 45 pounds as a backpack rig
• Fuel: XM42-L gasoline or gasoline-diesel mix in a self-contained handheld tank; XL18 3.3-gallon tank, napalm compatible
• Propulsion and ignition: XM42-L electric pilot ignition; XL18 CO2-propelled with pilot torch ignition
• Warranty and availability: XL18 carries Throwflame's lifetime warranty and is in stock; free UPS Ground shipping on direct orders

The range gap is the headline. Three times the reach changes what the tool is for: at 33 feet you are clearing brush piles and doing recreational burns at close quarters, while at 80 to 110 feet you can run controlled agricultural burns, firebreaks, and land-clearing work without walking the line as closely. The 3.3-gallon tank compounds that, since a bigger fuel load means longer working sessions between refills.

The weight gap cuts the other way. Nine pounds is something you can hand to a friend at a bonfire; 45 pounds is equipment you gear up for. Neither number is a flaw, they are just different design goals.

The XM42 name has traveled a rocky road. The original XM42 was made by Ion Productions, which folded in 2018, and the brand has since changed hands. The current XM42-L sold at xm42.com is the successor to the discontinued XM42 Lite. The product line survived, which counts for something, but a buyer today is dealing with a different company than the one that built the brand's reputation.

Throwflame, by contrast, has been continuously operating out of Cleveland, Ohio, sells the XL18 direct at throwflame.com, backs it with a lifetime warranty, and has the unit in stock with free UPS Ground shipping. For a tool you may own for decades, continuity is not a small thing: it is the difference between a manufacturer that can honor a warranty claim or supply support years from now and one whose history includes a corporate collapse and a handoff.

To be fair, a brand changing hands is not automatically a mark against the current product. But if long-term support factors into your decision, the two companies' track records are not equivalent, and that is worth weighing alongside the spec sheet.

Buy the XM42-L if you want the least expensive path to a real flamethrower and your use is casual or recreational: bonfires, snow melting, brush piles, weekend fun. At $595 and about 9 pounds with no backpack tank, it is simple to store, simple to carry, and simple to hand off. Its roughly 33-foot published range is enough for close-in work, and gasoline or a gasoline-diesel mix is easy fuel to source.

Buy the XL18 if the flamethrower is a working tool or you simply want the most capable unit sold to civilians. Agricultural burns, land clearing, and professional applications benefit directly from the 110-foot-plus napalm-mix range, the 3.3-gallon capacity, and the CO2 propulsion, and the lifetime warranty fits a buy-once purchase. The $3,450 price is only high until you compare it against what the unit replaces in labor on a burn crew.

If neither extreme fits, two middle options are worth knowing about. Throwflame's X15 runs $1,699 to $1,850 and puts out 50 feet from a backpack platform, roughly half the XL18's cost for a meaningful step up over any handheld. The ARC, at $699, is an all-electric 30-foot handheld that competes directly with the XM42-L on price, and like the XL18 it is in stock, sold direct.