Author Topic: 20# tanks stove  (Read 2044 times)

Offline keithturtle

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20# tanks stove
« on: November 23, 2015, 09:34:04 PM »
I've been working for a while on an airtight woodburning stove made from a pair of 20 lb propane cyclinders. The gist is, recycle expired tanks into a usable woodburner.  The bigger picture is, SHTF, nobody can get fuel anymore, so why not reuse something otherwise considered useless?

Still working on the final iteration, but so far I've come up with a burner plate perched atop the flue stack, which is castable refractory to handle the heat and provide support. Skin temp at top in front of stack approaches 800*F.

If there's any interest, I'll take some pics and post the progress.  I've learned a lot along the way; and while this isn't anything approaching ZPE, it is a pragmatic approach to a practical means of providing heat in troubled times (as long as wood is available). Also planning on a pellet basket, but I'm pretty sure it will require more elaborate air supply to maximize the pellets

More later

Turtle

Offline zero

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Re: 20# tanks stove
« Reply #1 on: November 27, 2015, 04:26:56 PM »
Funny, I would think at least 3 of those tanks would be needed to approach what I'd think is the minimum height for a tall enough riser stack inside.

Offline keithturtle

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Re: 20# tanks stove
« Reply #2 on: November 27, 2015, 05:12:32 PM »
Yeah, think small wood stove, not rocket.  The firebrick cast flue serves as the cooking base; attach metal flue pipe to that for inside use. I came across this vid that looks alot like mine, with several changes

https://www.youtube.com/watch?v=7oIJpD2dPX4&feature=iv&src_vid=qRcGkcGaVlY&annotation_id=annotation_2837974753

Pics soon

Turtle

Offline keithturtle

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Re: 20# tanks stove
« Reply #3 on: January 05, 2016, 11:45:26 PM »


Pics soon


As usual, life gets in the way.  Still working on this as I can.  A plasma torch has really sped up the process

Turtle

Offline keithturtle

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Re: 20# tanks stove
« Reply #4 on: June 02, 2016, 12:58:59 AM »
This thing burns pellets; looks promising

https://www.youtube.com/watch?v=y7xvx8khoiM

Turtle

Offline zero

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Re: 20# tanks stove
« Reply #5 on: June 07, 2016, 10:47:34 PM »
Not sure how you adapt that to a rocket but watching with interest!

Offline keithturtle

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Re: 20# tanks stove
« Reply #6 on: September 10, 2017, 08:14:07 PM »
Not sure how you adapt that to a rocket but watching with interest!

An experienced rocketeer gave me the inspiration for a two-piece cast core that will indeed fit inside a 20# tank

http://donkey32.proboards.com/thread/2180/another-attempt-apply-rocket-technology

I'm still working out the details, but making progress slowly

Turtle

Offline Ozone

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Re: 20# tanks stove
« Reply #7 on: September 11, 2017, 03:20:46 PM »
Think Zero has lost the plot

Offline zero

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Re: 20# tanks stove
« Reply #8 on: September 30, 2017, 08:00:50 AM »
That's very impressive work. Last post to that thread wan May. Wonder what's happened since?

Offline keithturtle

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Re: 20# tanks stove
« Reply #9 on: October 04, 2017, 06:59:02 PM »
Nothing with that design.  He put up a site sharing all his work.  He does not believe "brain drain" is a good thing

http://batchrocket.eu/en/designs#brick2

Turtle

 

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