Alcohol Torch - Build Your Own

About: I started my blog to show the world the things I build, design, and create. I personally like seeing the interesting stuff that other people have come up with and I hope you do too. My blog is a place where ...

This is a very simple to build torch. It is fueled by denatured alcohol and only requires just a few materials. 

The only materials I used are:
Plastic Bottle
Wood Glue applicator tip
Small piece of scrap aluminium
1/8" Brass Tube
Oil Lamp Wick

Most of these materials can be interchanged with something else. For example, you don't have to use a wood glue applicator tip. This can easily be interchanged with something else. It is just what I had laying on my desk at the time. 

If you like projects like this, be sure to check out my website 



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    10 Discussions


    6 years ago on Introduction

    Awesome! Now, sorry if I sound like an amateur here, but what practical use does this have? I mean, I can see where a torch is useful, but one that has an inconstant flame? Does denatured alcohol burn hotter than other flammable liquids? It's a really cool little torch though.

    1 reply

    Reply 2 years ago

    It is used to smooth the surface of wax models. The fact that the flame is dependent on the hand pressure prevents melting other parts of the model. If you have a fixed flame,like a pencil torch, getting in and out without melting everything is more difficult.

    I completely understand what you're saying, TheGeek1984. A torch with an intermittent flame doesn't seem too practical. I do think that this torch though is good for a few things though. For me, it is a tool that I'll just leave on my desk for when I need to heat something simple up. Like when I need to get a paper clip red hot or warm up a piece of plastic for bending. I've heard that they are used in sculpting for warming the material you may be working with (wax for example). Also, the fuel is relatively cheap and easily accessible and the torch doesn't burn the alcohol very fast at all...............So there are a few examples where it can be handy, but if I have to heat something big or get something really hot, I'll be using a standard blow torch.

    1 reply

    Reply 3 years ago

    Wonder what it would take to add a small aquarium pump to create a steady supply of air pressure instead of squeezing and relaxing the bottle?

    I did actually entertain the idea of including a fan, but I figured with the constant rate of air going thru the bottle that the fume-to-air ratio would be pretty low and not yield a good result. This may be why your torch didn't work too well fozzy13.....


    6 years ago on Introduction

    This is awesome! I attempted to build something that would achieve the same thing. I used a small fan in my version, but it was unsuccessful. Great job!


    6 years ago on Introduction

    Nice job, I could see that being pretty handy.
    Next version: funnel a mini fan into that tube, and a momentary push button switch up by the top, or a foot switch! (...and a battery, or wall wart, of course.)