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Daniel Goldenberg
(dag4643) - M

Locale: Pacific Northwet
drilling stainless on 03/23/2011 08:24:45 MDT Print View

A step drill works really good for drilling holes in stainless. It helps to drill a small starter hole using something like an 1/8 inch drill bit and then use the step drill to enlarge the hole.

David Adair
(DavidAdair) - M

Locale: West Dakota
Mini Wood Burner on 03/23/2011 12:57:45 MDT Print View

A nice bit of design. Achieving simplicity, it seems, is often a tricky thing to accomplish. Forgive me, but being a recurring mini wood stove tinkerer myself I can't help but stick a couple fingers into the pot...

One of the problems inherent with all these little wood stoves is their tendency to cool too fast, making it hard to sustain a low fire. The obvious UL solution would be to line the firebox with some of that ceramic foam they developed for the space shuttle tiles (they gonna part that thing out?). The other common choice is bending some sheet metal into a zig-zag shape to lay in the bottom. That should help the airflow some too.

For increasing thermal conduction to the pot the oldtimers often cut a round hole in the top of the stove for the pot to sit snuggly into. A pail shaped pot probably helps but maybe a silicon ring might be used on a straight sided pot to control the depth. One downside being the need for a particular pot to fit in the hole. These little stoves require a lot of feeding so the hole might serve double duty.

The Swedish army used to use a vertical stove for tent heating? - I will be wandering off in that direction now.

Edited by DavidAdair on 03/23/2011 13:10:00 MDT.

Rob Hubbard
(robwa10) - F

Locale: England
Re: Run dry! on 03/23/2011 14:22:55 MDT Print View

Completely agree with you, I never run any pot dry. You would have to make sure the kettle always had some water in it. For a base camp/car camping model I would envision using the largest kettle as I'm assuming it's more than one person. It would effectively become a hot water tank of sorts. If I like the small box stove I'm designing at the moment then I may have to explore how to add the kettle to a larger version. An instant brew whenever you want would be great!

Connie Dodson
(ConnieDodson) - F

Locale: Montana
Beautiful on 03/23/2011 14:30:08 MDT Print View

We are discussing your nice design, over at bplite forum: http://www.bplite.com/viewtopic.php?f=60&t=4955

I have had a long running thread "small wood stoves for "hunter's tents" http://www.bplite.com/viewtopic.php?f=60&t=4539 over at bplite forum. You may be interested in seeing other wood stoves meant for backpacking and more tipi's collected from around the internet over there.

http://www.bplite.com/viewtopic.php?f=60&t=4873 has online calculators for "smokers" that compute the intake, firebox volume, and stovepipe diameter relevant to wood stove design.

Also, now that two diameters for Ti-Goat Stove Pipe parts are offered, it is easier to see a 3" stovepipe isn't the only available option.

I offered this information, because it is so true:

"The problem with a smaller stove is continuous feeding and when stored the chimney and bits would not sit inside so you end up with some wasted space".

What are the dimensions of the steam trays?

Edited by ConnieDodson on 03/23/2011 14:33:43 MDT.

Franco Darioli
(Franco) - M

Locale: Melbourne
Wood Burning Stove with chimney on 03/23/2011 16:04:43 MDT Print View

Yes. Same reason why I always suggest not to use the Trangia kit with a wood burner and the same for the Swiss volcano set up.
I can "see" how a damper could be added under the kettle but I really think that we are aiming for a Darwin award here...
BTW, I am all in favour of the Darwin awards as long as they include me out.
Franco

David Adair
(DavidAdair) - M

Locale: West Dakota
Darwin pfffft on 03/24/2011 01:02:58 MDT Print View

Connie - Thanks for the link to your wood stove thread. I enjoyed reading about the many creative ideas and projects in evidence, including your ammo can stoves. I am inspired. I dunno, seems like if you are willing to believe in Darwinism you ought to be willing to gave it a fair chance to work?

Franco Darioli
(Franco) - M

Locale: Melbourne
Wood Burning Stove with chimney on 03/24/2011 01:39:26 MDT Print View

Hi Connie
That is odd, I did not see your post when I replied to Rob...
I will have a look at your thread..
The trays are 10.4" long, 6.6" wide and 2.3" high.
Those are the external dimensions..
Franco

Franco Darioli
(Franco) - M

Locale: Melbourne
Wood Burning Stove with chimney on 03/26/2011 02:18:53 MDT Print View

Today I had another burn with this stove.
This time for a bit over 1 hour because of some concerns I had watching the video at bpLite on what appeared to be a similar stove.
Watching that again today I realised that that one was probably 4 times or so bigger so no doubt it burned a lot hotter than mine.
( I will do some longer burns when the weather improves)

BTW, these trays do come from different manufacturers with different thickness and different steel, so if you are thinking of making your own keep in mind that
if too thin it will probably collapse.. and no aluminium...
Today at first I put 1/2 a liter in a 700ml pot. From lighting the stove to boiling it took almost 25 min.
Then I put a kettle on with also 500 ml. This time it boiled in about 20 min.
Because the middle of the tray is slightly caved in there is contact only around the edge of the pot although the rest is only one or two millimeters away.
Cutting a hole would obviously speed up the process but given that these types or stoves are used by guys that heat up their shelter as well as cook with them, I don't think that speed is all that important. (that is there is usually time to kill)
Having at hand bits of wood of the right size, about 7" long 3" in diameter cut in half , will keep the stove burning for about 15-20min, a bit longer if you do not need a hot fire.

Franco

wendy williams
(wendywilliams) - F

Locale: Hicksville
Wood burning Stove on 04/19/2011 06:34:06 MDT Print View

Rising energy cost is the main problems in front of the Americans to buy not only more fuel-efficient cars, but also wood pellets, which generally are made from sawdust and wood shavings, as fuel to heat their homes. About 800,000 homeowners are already using them. this is the biggest technique which can be used in chimney its a great and adjustable air control.

Edited by wendywilliams on 04/19/2011 06:37:37 MDT.