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looking for design advice for a rocket stove heater in a portable sauna

Posts: 1
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Hwy fellow permies,
I am looking to build a portable wood-fired sauna in an old cargo trailer. sweat room will be 7'x8'x7' tall and there will be a 7'x6' changing room.

I think I want a rocket style stove that-
1) heats up quick
2) low smoke
3) wood efficient
4) is relatively light weight (although it is a double axle trailer so a couple hundred pounds is not going to hurt anything)
5) Can be thermally isolated from the floor of the trailer so it does not burn through
6) is not going to crack with some road- jostling (no cob or soft firebrick)

I do not care about thermal mass

I am in early design phase, but I am seeing some sort of pocket-rocket stove, possibly made out a stainless-steel 7.5 beer keg I salvaged, with a removable chimney so it can be taken down for transport but put back up to get the nice rockety draw. I am not sure how I will insulate the stove from the floor yet, but I am thinking about some sort of platform that is on ceramic insulators.

If folks could share their previous experiences that would be relevant , or link me to previous forum topic or designs that would be much appreciated.
Posts: 7707
Location: Ozarks zone 7 alluvial,black,deep clay/loam with few rocks, wonderful creek bottom!
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Hi Jon and welcome to permies!
I can't answer your question but this will bump up your post and I'm sure someone here can answer for you.
Posts: 136
Location: Ohio
hugelkultur chicken woodworking
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Sounds like a clever idea. I'll give it some thought.

I like the thought of variations of design. Saw YouTube of rocket mass heater going underground to heat tilapia tank. If I built a rocket mass saunas it would use cob thermal mass. Will be keeping eye on this thread to see what ideas there are to avoid thermal mass.
Posts: 614
Location: ontario, canada
transportation fungi tiny house
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I will look 4 a link for you

Check this unit, I think it's very light weight

Rocket Mass Heater Plans: Annex 6" L-shaped Bench by Ernie and Erica
will be released to subscribers in: soon!
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