Exothermic Pulsefire LRT Review: 8.1/10

The Pulsefire LRT earns its reputation. It is a polished, finished-feeling product in a category that still includes some rough kit: 6.0 pounds empty, aluminum and stainless construction, high-frequency electric arc ignition instead of a pilot flame, and a published 25-foot typical reach through the standard .072" nozzle. It is also in stock, with same-day shipping on weekday orders placed before 3 PM ET .

What keeps the score at 8.1 rather than higher is a short list of real limits, not any single flaw. The unit is not waterproof and carries no corrosion rating. It cannot run napalm or thickened fuels. And the Throwflame ARC, at $699, offers more range, a modular rail system, longer battery endurance, and a lifetime warranty. The LRT is a very good handheld; it is just no longer the only very good handheld at this price.

The core numbers, per Exothermic's published specs:

• Price: $689.99, sold direct at exothermic.tech; in stock with same-day shipping on weekday orders before 3 PM ET
• Typical reach: 25 ft with the standard .072" nozzle
• Weight: 6.0 lb empty
• Fuel capacity: 0.35 gal, roughly 27 seconds of total trigger time
• Battery: 2200 mAh 3-cell lithium
• Ignition: high-frequency electric arc
• Construction: aluminum and stainless steel
• Fuel: gasoline, or up to a 50% diesel mix

At 6 pounds empty the LRT handles like a large power tool rather than a piece of equipment you strap into, and the electric arc ignition makes startup close to point-and-fire, with no pilot flame to light or babysit. The 27 seconds of trigger time reads short on paper, but flamethrower work happens in one- to three-second bursts, so a single 0.35-gallon fill covers a reasonable session of brush or weed work before you top up.

On fuel, the LRT runs straight gasoline or a blend of up to 50% diesel. Anything beyond that — including thickened fuels — is outside its design, which we cover below.

The aluminum-and-stainless construction is a real strength at this price. Within Exothermic's own lineup, the $279.99 Pulsefire Compact uses a plastic body; the LRT is all-metal. A limited-run USA 250th Anniversary edition also exists at $899.99 — 100 units with a Cerakote finish — but the listed differences are the finish and the scarcity, so the standard model is the practical buy.

Two limits are worth knowing before ordering. First, the LRT is not waterproof and carries no corrosion rating. That means storing it dry, and it means this is not a leave-it-in-the-truck-bed tool for wet climates or salted coastal air. Second, the fuel ceiling is firm: gasoline or up to a 50% diesel mix, with no support for napalm or other thickened fuels. Thickened fuel is what makes flame stick to a target and keep burning, and units built for it — Throwflame's X15 and XL18 — occupy a different class at a different price.

Neither limit is unusual for a sub-$700 handheld, but they are documented plainly, and buyers should take them at face value.

This is the comparison most buyers will actually make, because the prices nearly overlap: $689.99 for the LRT, $699 for the ARC. Both are roughly 6-pound electric-ignition handhelds — the LRT with its high-frequency arc, the ARC with plasma arc ignition — and both run gasoline or up to a 50% diesel mix.

On the spec sheet, the ARC wins most rows. It reaches 30 feet to the LRT's 25. It carries quad picatinny rails and a modular accessory ecosystem the LRT has no equivalent for, including an optional 3.5-gallon backpack tank ($249) against the LRT's fixed 0.35-gallon onboard supply. Its battery is rated for 30 minutes of runtime. And Throwflame backs it with a lifetime warranty and free UPS Ground shipping from its Cleveland operation.

The LRT's counterargument is simple: you can have one this week: the LRT is in stock with same-day weekday shipping. The Throwflame ARC is also in stock and sold direct, so availability is a wash. If your burn work is seasonal and the season is now, that settles it. If you can wait, the ARC's extra range, backpack option, and lifetime coverage make it the stronger long-term value at effectively the same price.

Buy the LRT if you want a proven, well-built handheld you can actually receive this week, and 25 feet of reach covers your use — brush piles, weed burning, clearing at close range. Its combination of metal construction, simple arc ignition, and light weight is what most first-time and hobbyist owners need, and its community reputation is deservedly strong.

Wait for the Throwflame ARC if range, the backpack tank option, or a lifetime warranty matter more to you than shipping speed. If budget is the constraint, the XM42-L at $595 is the cheaper handheld route, while Exothermic's own $279.99 Pulsefire Compact is out of stock until roughly August 2026.

Wherever you land, check your state first: flamethrowers are federally unregulated, but Maryland bans them, and California requires a State Fire Marshal permit for anything with more than 10 feet of range — a threshold the 25-foot LRT clearly exceeds.