The flamethrower is one weapon that really catches the imagination, and, if you’re looking at it, inspires fear. It may not exactly be an ideal weapon for a Doomsday scenario, but it will have some practical purposes.

For instance, it can be used to melt snow, scare off some animals (and even potential looters), and melt the ice off some of your farming equipment. Keep in mind, the flamethrower we are about to show you is a very inexpensive fix and may not last very long because it is made from plastic, but it can be used when you between a rock and a hard place.

In the United States, only Maryland has outright banned flamethrowers while only California has decided to regulate them. In the Golden State, you can’t have a portable device that throws flames more than ten feet.

Unfortunately for Californians, you don’t really want to aim to build a device that throws flames as close as possible to you, you’re going to end up burnt. Everyone else should be able to legally make this project, but do take care to check your local laws and use this flamethrower wisely, it burns up pretty unexpectedly far.

Tools & Materials for DIY Flamethrower

  • Water gun (a Super Soaker is the ideal gun)
  • Rubber Cement
  • WD 40, or other flammable liquid
  • Lighter

Preparation for DIY Flamethrower

  1. When purchasing your water gun, keep a few things in mind. The further the nozzle of the gun is from where your hands rest, the better. In particular, if your water gun is pump action, make sure the end of the pump is not right next to the nozzle, you’ll get burnt.
  2. Before you do anything, fill the water gun with water and take note of how it sprays. Practice a few times to make sure you’ll be able to predict where the flame will go.

Instructions for DIY Flamethrower

  1. Paint the nozzle of the gun thickly with the rubber cement.
  2. Pour the WD 40 into the water gun.
  3. Light the rubber cement with the lighter.
  4. Practice in a safe environment.

Wind conditions are going to significantly change the direction of the flame, so take care that the wind will not blow the flame back in your face.

If this is a Doomsday scenario and you are trying to intimidate potential looters, note that setting things and people on fire often has very unpredictable results.

Flamethrowers can also be “useful” for melting snow, destroying weeds, and burning wasps’ nests.

The same rules apply, things that are set on fire get angry, so make sure you have an escape route ready and that may need to include a nearby water source to douse flames, depending upon exactly what you are plan on using the flamethrower against.