Rocket Stove
Rocket type stove, made with light weight ceramic refractory. The refractory was trowled onto a 1/4" x 1/4" mesh form. The same mesh use for the wood support. Re-bar wou;d be better for supporting for the firewood but this is what I had on hand. The refractory is mixed with water like cement and is trowled on one section at a time and allowed to set up. Building several at a time would be more time efficent. The weight of this unit is only 27 pounds. The ceramic refractory is rated at 2500 degrees F. 
posted by Rusty Shuping @ 4:13 PM
5 comments
5 Comments:
Just curious what the brand name of the material was that you used on this stove. I'm considering making one myself out of a material called "Insulstick". It's fairly cheap, at $70.00 for 30 lbs., and that's the dry weight. Do you have any reference on high temperataure seals? I'd like to make some modifacations to this stove for other applications besides cooking. I'd like to adapt it for heating, but I'm unsure as to how I should proceed. With a better idea of some of the products that are out there, I could thumbnail a few ideas before I commit to a prototype. I'd appreciate any info you could share on the subject, before I get started.
try Refractorymix.com
I would use a calcium aluminate cement, instead of a Portland type cement - carbon monoxide (due to incomplete combustion in the stove) eats away Portland. If anyone has experience with these calcium aluminate high temperature refractories for developing world stoves... I am doing experiments now (5/2007) and would like to compare notes.
Hi,
I'm currently experimenting with calcium aluminate cement (brand name "ciment fondu" and vermiculite in an expanded galvernised steel mesh with 10mm gap),to make some rocket stoves.
Used the stuff straight to cast the profiled top dish and pot supports using wet sand as a mould, before reading on the companys site that it must not be used without aggregate.
I'll see how they last.
Just trying a 6/1 mix,fine vermiculite/ciment to stuff the mesh form with the chimney gap formed in roled corrugated cardboard. Then I'll trowl a hard mix with appropriate aggregate on the outside.
The spec'sheet says no particles under 0.5mm and keep it wet to cure.
For an example of a rocket stove used for heating, see http://www.youtube.com/user/LarsMith217
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