The ADX stove

Being in post operation state and having caught an infection which was far more worrying than the actual operation, has given me lots of time to do nothing.
The Penicillin started to work on the infection in about 36 hours and improvement has been gradually improving. The biggest problem i have had is boredom.

I've read lots of your blogs old and new and come up with a number of ideas to try out in the future.
As readers will have gathered, i am not averse to making my own gear so when i read Gordon Green's post on his favourite Evernew DX stove it raised my spirits to find out more.

I knew i had enough materials in the shed to have a go at making a copy of the stove but i didn't know measurements and it would be made from aluminum and not titanium. Gordon kindly provided me with burn height and from a number of web sources including Evernew's own page i managed to put together a decent copy which i christened the ADX stove.

Having made it, which is pretty easy, i can see exactly why Gordon likes it. It's a neat design, the upper body fits inside the lower body and the stove fits inside too. Then all together it fits inside your pot and there's not much can go wrong with it.

So i came to try it out and was full of hope that it would prove to be better than my 12 - 10 stove with a cone windshield. Its always nice to make something yourself which proves to be at least as good as the shop bought.

Sadly it wasn't to be, i tried it with my trangi burner, my cat can and my 12-10 , all with and without a trivet. I used Evernew 600ml pan. The problem as far as i can tell is the loss of heat through the top slots of the upper windshield.
I found that it took approximately 30% more fuel and about the same 30% more time to boil 400ml of water than my 12-10 and cone windshield.

 My attempt at a DX stove, so much heat loss through the top slots, with or without a trivet.

I tried putting a secondary shield around the pan but it didn't have a positive effect, it just burned less efficient and generated more soot.

I was quite sad really after my effort to make the stove. I was hoping for better things. I suppose that if my backpacking trip was short or fuel readily available then i would use my version of the stove but i wouldn't take it on longer trips where you need to be as frugal as possible with fuel.

In the same vein as Gordon's post got my attention then so did Robin's post about Bio Gel alternative fuel. 

I became aware of Bio Gel fuels a little over a year ago when my local garden centre put on a demonstration of alternative house fires. They used bio gel and the brochure was highlighting things like, less soot, less smell, eco friendly etc.

I thought then about getting some and trying it in the trangia. However at the time i couldn't buy it in small quantities. I think it was something like 12L was the minimum purchase.

I checked the internet and this seemed to confirm the volume was not available in 500ml purchases or pouches as in Robin's post. I didn't pursue it any further but just kept the idea in the back of my mind. Then Robin rekindled that train of thought.

Lo and behold bio ethanol was now available in small quantities and i went for the liquid rather than the gel. I got it from Gardeco via Amazon. Price was reasonable at £2.49 for 500ml.

I have done just a quick test comparison with methylated spirits and the first impressions are good. They both boiled 400ml of tap water in about 5.5 minutes. But this was done in my kitchen and so i need to try it in the field to get more realistic results but for now i would say it has potential.

One thing i did notice though, was it still had a smell when burning and it wasn't too dissimilar to meths. I have a thought that it might require a little more oxygen, so i will make a second cone with more slots in. I don't want to corrupt my current cone as it works well with meths and the 12-10.

All good fun and reduces my boredom at having to stay indoors.