Exothermic Technologies logo.


Can I shop in-person?

Many firearms dealers, hardware stores, and sporting goods retailers stock our products; give your local shop a call to see if they have them in stock. Find a dealer on our Dealer Locator page.

Our headquarters is not open for retail sales – it is an employee only facility.

Can I backorder out of stock items?

No. Our mission is to only sell you an item we have in-stock and ready to ship. You can sign up to be alerted by e-mail when an item comes back in stock, and of course, feel free to reach out to us and we’ll let you know what the latest scoop is on inventory.

We do take backorders for dealers and distributors. Reach out to your local dealer and express your interest in getting your hands on our products, and we’ll do what we can to make it happen when they contact our sales team.


Do you ship to addresses outside the USA?

Sorry, we do not ship outside the fifty United States (not even to US Territories) at this time.

This may change in the future. We know there are many people all over the world interested in our products, and we’d love to share them.


Do you offer any job-title discounts (LE/mil/etc.)?

Unfortunately, we do not offer any career based discounts.

Pulsefire LRT logo.


Is it legal? Do I need a background check?

Flamethrower ownership is generally legal in the United States without requiring any sort of background check.

As the product name states, it is simply a long range torch. However, Maryland and California do have restrictions regarding such devices. The city of Warren, Michigan also prohibits possession via local ordinance.

Map of the United States depicting Maryland in red and California in beige.

In Maryland, flamethrowers are outright prohibited to possess due to falling under the state’s definition of a destructive device (not the federal definition).

In California, non-stationary devices that are designed/intended to emit a burning stream at least 10 feet are prohibited without a license issued by the State Fire Marshal. We’ve developed a nozzle that reduces the output distance to less than 10 feet to create a compliant version that does not require a permit/authorization. Nozzles are replaceable and available in our store for those out-of-state trips or transfer to a new owner.

Check with your local laws. It is your responsibility to understand and adhere to all relevant regulations.


Is it safe to use?

The Pulsefire Long Range Torch system is a liquid fuel flame throwing system that is built to be as safe as possible for a device of its nature. Our team developed every aspect with user safety in mind. For example:

  • The nozzle design helps keep fuel and flames at the nozzle instead of dripping back toward the user.
  • The ignition system is on-demand; no need for an open flame pilot torch or pressurized butane.
  • The fuel storage tank(s) are non-pressurized, like any typical gasoline powered outdoor tool.
  • A check valve between the pump and nozzle prevents fuel flow between activations.
  • A low voltage cutoff circuit prevents over-discharging the battery used to power the unit.

Of course, flame producing equipment is inherently hazardous. Good judgment is key to maintaining personal safety. When the battery is connected, and the power switch is on, pressing the trigger switch will generate fuel and flames up to 30 feet away if there is any fuel in the reservoir. We recommend to always transport the device with the battery disconnected to prevent accidental activation.

Can the flames “blow-back” internally?

No. There is not enough air inside the plumbing to facilitate a flame front that is in any way harmful. The convoluted and tight-tolerance geometry inside the fuel pump combined with an ultrafine metal screen mesh provide built-in flame arresting properties. The tiny nozzle orifice and all-metal check valve also contribute to this resistance. There will always be some level of liquid fuel trapped inside the plumbing even when apparently “running on fumes” due to the components and paths involved.


What powers it?

A rechargeable high-output lithium polymer battery (included) provides the 12V power required to the high pressure fuel pump and ignition system. This type of battery is typically used in radio controlled vehicles. You can see the specifications on the battery product page.

How is it refilled?

Turn off the power, blow out any remaining flames at the nozzle, and unscrew the fuel cap. Pour in gasoline or a gas-diesel mixture and re-tighten the cap. It’s that simple.

How long does the battery last?

Fully charged, it should power the system for about 15 full tanks of fuel, and 2 full tanks using the backpack. Environmental conditions as well as variations in manufacturing (of the battery, nozzle, pump, fuel reservoir etc.) can affect this capacity.

Keep an eye on the voltage gauge – at about 10.5 volts the system will cut power to the trigger to alert you that it’s time to change or charge the battery. Extra batteries are readily available at local hobby shops, Amazon, or through our store.

Can it be modified to shoot farther?

No. It would require a significantly more powerful (and much heavier) fuel pump, along with a nozzle to match. The current system is achieving maximum performance with the type of fuel pump used.

We have used fuel pumps well above the current production unit’s flow and pressure capabilities as well as various nozzle shapes and orifice sizes without resulting in significant changes in performance.

The system as it stands balances fuel efficiency, distance, weight, and size, accommodating the vast majority of individuals.


What fuel should I use?

Gasoline (unleaded, any octane) will produce a bright hot flashy flame and produces the most reliable and brilliant results.

A gasoline-diesel mixture (up to 50% diesel) is what you want to use for burning foliage. Gasoline will keep the mixture above its flash point, and the oily diesel fuel will keep the fire going until whatever you’re burning is well-done. Do not use or store diesel below 32 °F.

Do not use any other fuels.

Can I use napalm?

No. We use a tight tolerance high speed fuel pump with a fine screen mesh filter that is designed for low viscosity, non-conductive fuels. Napalm is for more simplistic valve based high pressure systems. The modern day equivalents are typically 60+ lbs.

Firefighters and forestry users will typically use up to 50% diesel fuel in order to slow the burn while also increasing the flame temperature. It’s a bit more oily and clings to things better.


Fuel is being emitted but not ignited. What should I do?

If the spark/arc is occurring and the fuel is not being ignited, it is due to one or more of the following:

1. The outside temperature is too cold, causing minimal fuel vapor to be present. If you are trying to operate in very cold temperatures, and yours is equipped with a pulse-style ignition (loud, blue sparks like a stun-gun), you may need the arc ignition kit, which allows for reliable ignition down to 0°F with gasoline.

2. The fuel is not flammable. For example, trying to use 100% diesel, which is not typically flammable unless it is in an environment that is at least 125 °F.

3. The electrodes are not positioned optimally. If the electrodes are:

  • Too high – the spark won’t touch enough fuel vapor.
  • Too low –  the fuel might quench/drown the spark.
  • Just right – you’ll have reliable ignition.

The position shown below should work great for most situations. You want a 5-7 mm gap between the tips, and the tips to be basically a hair above being centered on the stream. That way the arc travels just along the top of the stream.

Line drawing of front of nozzle shield and electrodes, indicating proper alignment.

(click to enlarge)

The stream of fire is much shorter than expected. What should I do?

The system should be able to send out a continuous appearing blast of flaming fuel 25 feet in length at the beginning of each blast you send. When holding the trigger down, the fuel and flames will pull back slightly (20-22 ft) due to the fact that after the initial stream is emitted, we are sending fuel into an already existing fireball and burning it up faster.

If your system seems to suffer significantly shorter distances, one or more of the following is happening:

1. Wind is negatively affecting the stream’s consistency, causing it to scatter and atomize into droplets more easily and burn up faster. We are working on a solution to increase the resilience of the stream when it is windy. If you have access to an indoor warehouse or otherwise windless environment, place a rock or other marker at the 25 foot mark and have someone film from the side as you send a few 2 second bursts. If it doesn’t reach the marker in a windless environment, consider items 2 and 3 below.

2. The stream is contacting one of the electrode tips. If the stream physically contacts the electrode tips, it will cause a severe reduction in performance as it scatters and breaks the stream immediately as it exits the nozzle. Adjust the electrodes so there is room for the stream to pass by. Video instructions are available on the Instructions and Manuals page.

3. There is a problem or obstruction with the fuel system (check valve, pump, or nozzle). Either something’s clogging things up or the pump isn’t performing as it should. Contact us and we’ll figure it out.

No spark is occurring and/or I'm being shocked. What should I do?

Are the electrodes clean and white or are they covered in black carbon?

Carbon is conductive and will short things out. As it mentions in the maintenance section of the user manual, wipe the electrode insulators clean. Use brake cleaner if necessary, and you should be back in action.

If the issue persists even while the insulators are shiny and white, contact us and we’ll investigate the issue for you.

LRT nozzle shield with carbon buildup on electrode insulators.