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. This is America, and freedom is something we stand for.

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.


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 (PF-CA) that will be available soon. 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 there a warranty?

Absolutely. We provide a limited lifetime warranty on all of our products. See the full warranty text here.

How do I install the Backpack Kit reservoir?

Simply remove the screws holding the original tank to the body, disconnect the existing hose from the fuel pump and connect the new one! The included instruction manual and a video walkthrough are available on the Instructions & Manuals page.


Is it safe to use?

It’s the safest a flamethrower can be. Our team designed every aspect of the unit with user safety at the forefront. 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.
  • A high precision check valve helps prevent any unintentional drips during use or storage.
  • A low voltage cutoff circuit prevents over-discharging the battery.

Of course, flamethrowers and flames are inherently hazardous. Good judgment is key to personal safety. When the battery is connected and the power switch is on, pressing the trigger will generate fuel and flames if there is any fuel in the reservoir. Always transport the device with the battery disconnected and an empty fuel reservoir.

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.

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.

Arc Ignition: How long can I operate it?

We use a proprietary custom manufactured circuit that functions similar to a handheld stun gun. The difference is, our system is capable of operating for very long periods of time without overheating.

Our backpack reservoir will support over 4 minutes of non-stop operation. We wanted to make sure our ignition could handle it if someone really wanted to send fire for that long without taking any breaks in between.

Arc Ignition: How do I align the electrodes?

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.

(Click to enlarge)


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 any other fuels unless they are approved for use by Exothermic Technologies.

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.

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.


Can I buy in-person?

Many firearms dealers 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?

Nope. 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.

Can I change or cancel my order?

Once an order is placed, we quickly get to work on picking, packaging, and creating the shipping label. Call us at 772-204-0700 immediately if you need to make a change or cancel an order and we’ll make it happen.

Do you accept returns?

We like to keep it simple. If the item has been shipped, the order is complete. Apart from special circumstances subject to approval, all sales are final.


Do you ship to addresses outside the USA?

Unfortunately, no. This may change in the future. We know there are many who have a need and want for our products across the world, and we will see what we can do to make that happen as time goes on and exporting and navigating international laws becomes more feasible.

How fast is shipping?

All orders to the contiguous 48 states ship within 1 business day via UPS Ground.

Orders to Alaska or Hawaii ship via UPS Ground or USPS Parcel Select, depending on contents.

Specific delivery dates cannot be 100% guaranteed. We are at the mercy of UPS’s Service Guarantee.


Do you offer any discounts?

Unfortunately, we don’t offer any discounts directly through Exothermic Technologies. We do not wish to compete with our distributors and dealers on price.