Technically not a flamethrower… but pretty cool (hot).
So. yeah, if you don't know what you're doing. then don't. (That's it!). I used one similar to this one on Amazon I also have a full video about the device on YouTube at.
Refill Adaptor for Therma Cell Butane Cartridge Mosquito Repellent thermacell 2x
The Refill Adaptor for Therma Cell Butane Cartridge is a lightweight and durable accessory designed specifically for Thermacell mosquito repellents. Made of PETG material and in a sleek black color, this 3d printed adaptor is suitable for outdoor activities like backpacking, hunting, camping, and hiking. With a compact size and a set of 2 included, this adaptor is a convenient and practical addition to your outdoor survival gear collection. Proudly made in the United States, this adaptor ensures reliable performance in any outdoor setting.
Refill Adaptor for Therma Cell Butane Cartridge Mosquito Repellent thermacell 2x
Attach the adapter to the top of the modified Thermacell bottle. In other words, the #5 adapter goes onto the bare needle first, then this 3D printed adapter attaches onto the #5 adapter. When done correctly, the system should function reliably.