Hacker News new | ask | show | jobs
by stavros 1833 days ago
Okay, first of all, tell me more about this flamethrower.

Also, when you say "nets", do you mean "screens", ie on the windows?

1 comments

> Okay, first of all, tell me more about this flamethrower.

Just a lighter, a spray can, and steady hands. I know you're probably disappointed, but simplest solutions do work best :).

(To be absolutely clear: I only use this against wasps and hornets, and only in situations where there's no safe way of shooing them back out through a window.)

Operation: hold the lighter in front of you, light the flame, spray above it. Aim for sub-second bursts of flame - you don't want anything in the room to heat up. Never let the flame come close to any highly flammable surface (like drapes, or aforementioned mosquito net).

Tactics: against hornets and wasps, I shoot either below it, or at it directly. Shooting below, the rising hot air will confuse the bug, possibly stun it for a moment. Shooting at it, a sub-second burst is enough to burn off is wings, at which point you can finish it off using your favorite percussive maintenance tool.

Equipment considerations:

- I tend to use cheap, widely available flint lighters. I have experimented with gasoline and butane (high-pressure) lighters before, but IIRC, they didn't work well.

- For fuel, I use a deodorant. In the past, I've also used a hair spray - it's a good choice, because it enables a third mode of operation: cold mode. Because hair spray is viscous, hitting a bug with it is likely to clog its breathing apparatus and glue its wings, allowing you to safely apply the killing blow. I found it useful in a tent[0], where you absolutely do not want to play with an open flame of any kind. Anyway, any kind of spray with a flammable mixture will work, but pay attention to the possible combustion products. I do not recommend going for pressurized butane gas directly - it won't combust fully, and you'll be cleaning soot from every solid surface near you (ask me how I know).

I've been thinking about building/3D-printing a mount to operate the flamethrower single-handed, but to be honest, using two hands gives greater control, and the optimal distance between the lighter and the spray can varies with the type of spray can and environmental conditions.

> Also, when you say "nets", do you mean "screens", ie on the windows?

Yes. I buy a box with a fine mesh net, which I cut down to size and attach to the inside of the window using provided mounting strips (adhesive on the window frame size, velcro on the net side). We call this "moskitiera" (mosquito net). For balcony doors, there are variants with the net split in half and held together with magnets - so you can walk through it, and it'll close behind you.

--

[0] - I was once on a two-week camping trip where we were constantly assaulted by swarms of wasps. We didn't know until later that it was because there was a hive under the building near our site. The organizers of that camp actually funded me a supply of hair spray, and designated me as the camp's exterminator. The "cold mode" was useful for cleaning out tents every couple hours. After we left, the owners of the building decided it's too much hassle to clear out the hive, and burned the building down.

takes notes furiously