Inside an Alchy stove

Posted by: GDeadphans

Inside an Alchy stove - 07/26/10 02:41 PM

I saw a few alcohol stoves where they put fiberglass insulation inside the stove. I was wondering if anyone noticed a difference. The only upside I can see to this is in case it tips over alcohol wont spill. But does it affect boiling times, heat output, or burn time?

I see Tinny's Bongo has a "wick" similar for reference. Just wondering your opinions/facts on this matter. I am in the midst of building an atomic(s) and experimenting with hole sizes, amount of holes, and perhaps the stuffing wick idea. Thanks for any feedback!
Posted by: DTape

Re: Inside an Alchy stove - 07/26/10 04:20 PM

The insulation allows for a faster "bloom" as it wicks the alcohol to the holes and thus doesn't need to wait for pressure to build up. Credit "Zelph" for this design in his line of stoves. This is more pronounced as the temps drop. A wick based stove like the fancee feest which doesn't rely on any "jet holes" basically lights like a candle even at negative F temps. There isn't any speed advantage in boil times nor in efficiency except for there isn't any wasted fuel to prime the stove (ala whitebox) or wasted time in waiting for the stove to gloom. I am not a fan of tinny's stoves as they are over-machined and expensive. With an alcohol system, simple is much better.
Posted by: GDeadphans

Re: Inside an Alchy stove - 07/27/10 08:44 PM

Thanks a lot for the information. I believe his stoves are overpriced as well. Which is why I really want to replicate the Atomic. I really like the idea of the fire on the inside ring, I believe would be perfect for my Snow Peak 700. But I must say he does have great craftsmanship skills. Much better than my own smile.
Posted by: PerryMK

Re: Inside an Alchy stove - 07/28/10 02:57 PM

This is just a thought and something you might want to look t.

How long would it take for the alcohol in the wick, even a fiberglass wick, to completely evaporate?

If it didn't evaporate one might have a slow drip of alcohol in the pack as one hiked. I've never used a wick in this manner so have no idea. Maybe the heat of the stove or just the volatile nature of alcohol causes it to evaporate before its packed so this is a non-issue.

Posted by: PDA

Re: Inside an Alchy stove - 10/06/10 02:48 PM

When the stove stops burning, all of the alcohol has evaporated and burned, so there will be none on the wick when it is packed.
Posted by: Franco

Re: Inside an Alchy stove - 10/07/10 04:27 AM

BTW, there is nothing new about the idea of "wicking/wickatising, whatever" in a 'modern" alcohol burner. The Trangia has had that for some time...