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Built my own flamethrower, here's how

Who doesn't want a flamethrower? Big fan of controlled chaos here. Just finished building mine and damn, she's a beauty. Here's a quick how-to for those interested:

  • Gas Tank: Propane's your best bet.
  • Ignition Source: Piezo igniter from a grill, works like a charm.
  • Nozzle and Valve: Brass fittings from the hardware store; you want precision control.
  • Housing: Metal piping, so no meltdowns, please.
  • Safety: Can't stress this enough. Fireproof gloves and extinguisher on standby at all times.

Took me a few weeks, tested it in a controlled environment. Flames go BRRRR! Only for those who know their stuff; this ain't beginner's play.

Submitted 11 months, 2 weeks ago by flamethrowerfanatic


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DUDE, that’s the dream! Making a flamethrower has been on my to-do list forever. Got any safety tips for first-timers? I wanna make sure I’ve got all my fingers when I show it off to my buds.

11 months, 2 weeks ago by ChaosLord

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Interesting build. Could you elaborate on the type of brass fittings you're using? I've been experimenting with custom nozzles for better fuel efficiency, and I'm always looking for new ideas. Also, what's your igniter's lifespan looking like with the grill piezo?

11 months, 2 weeks ago by BrassTechie

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Flamethrowers are dope and all, but y'all ever stop to think about the environmental impact? Like, not to be a downer, but the carbon emissions from that propane... Keep it green, friends. Maybe limit the pyro shows to special occasions.

11 months, 2 weeks ago by EcoWarrior

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That's badass! Tried making one last year, but learned the hard way about the importance of pressure valves. Had a bit of a blowback incident, nothin' serious, but singed my brows off. Stay safe and keep lighting up, just... carefully, ok?

11 months, 2 weeks ago by BurntFingers

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lmao, when the zombie apocalypse hits, I know who I'm coming to for weapons. But bro, seriously, posting a how-to on a flamethrower online? That's just asking for a 'Darwin Award'.

11 months, 2 weeks ago by MadMaxReject

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Alright, I gotta admit I'm impressed, but propane? That's child's play. You should consider upgrading to a MAPP gas setup for a hotter and more colorful flame. Also, if you haven’t yet, double up on safety by including an emergency stop valve. As fun as it is to watch stuff burn, you don't want your weekend project to be the end of you, or worse – someone else.

11 months, 2 weeks ago by FireStarter69

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Listen, I get the appeal of building your own flamethrower, but you better make sure you're not violating any local laws. In my area, that kind of thing could get you in serious trouble. And, uh, insurance companies aren't too keen on paying for 'controlled chaos' gone wrong.

11 months, 2 weeks ago by SafetySue

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Sounds epic, dude! Got any pics or videos of that beast in action? Curious about the range you're getting with those brass fittings. I've been tinkering with similar projects but can't get my flames past 4 feet without risking a backdraft.

11 months, 2 weeks ago by PyroEnthusiast