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Hi everyone. I'm not quite in a position to build myself one of these big beauties wood burning, but I would like to pick your brains.
I'm building an "emergency" wood fired rocket cooking stove. It's the design cast straight into a 5 gallon bucket with L-shaped pieces of PVC pipe inserted for the intake/ heat riser. We have an electric oven in the home, and if the power goes out I still need to cook! http://i.ytimg.com/vi/aOZ7gJaqdtQ/maxresdefault.jpg That's the idea in its most basic form. I plan to make a couple of these in small and large sizes.
I have some questions about the materials to use. I want this thing to endure, so doing it for the absolutely lowest price isn't too much of a priority. Mainly, I don't want cracking, or lumps falling off. Lots of Youtube videos describe mixing portland cement with vermiculite - but this leads to very fast deterioration. This won't be left outside in all weathers.
Please can you let me which choice of materials is best suited to this purpose.
Castable - KL16F. A Fine 1600 Grade castable suitable for applications where the thickness is 2" or less, and can withstand upto 1600C.
- mixed with - 1-2% steel needles mixed in for strength. Do I also need to add vermiculite here? I would simply pour this into the bucket, around the PVC pipe, tamp down, remove tubes. Once cured, the bucket will be cut away.
OR..
A design with firebricks arranged inside the bucket, forming a central burn chamber and initial heat riser, and then continuing with the method described above? This sort of thing...
OR... something better!
This seems to be the best place on the web, so please can you critique my plan or share your guidance if you've built one yourself. Thanks!
I'm building an "emergency" wood fired rocket cooking stove. It's the design cast straight into a 5 gallon bucket with L-shaped pieces of PVC pipe inserted for the intake/ heat riser. We have an electric oven in the home, and if the power goes out I still need to cook! http://i.ytimg.com/vi/aOZ7gJaqdtQ/maxresdefault.jpg That's the idea in its most basic form. I plan to make a couple of these in small and large sizes.
I have some questions about the materials to use. I want this thing to endure, so doing it for the absolutely lowest price isn't too much of a priority. Mainly, I don't want cracking, or lumps falling off. Lots of Youtube videos describe mixing portland cement with vermiculite - but this leads to very fast deterioration. This won't be left outside in all weathers.
Please can you let me which choice of materials is best suited to this purpose.
Castable - KL16F. A Fine 1600 Grade castable suitable for applications where the thickness is 2" or less, and can withstand upto 1600C.
- mixed with - 1-2% steel needles mixed in for strength. Do I also need to add vermiculite here? I would simply pour this into the bucket, around the PVC pipe, tamp down, remove tubes. Once cured, the bucket will be cut away.
OR..
A design with firebricks arranged inside the bucket, forming a central burn chamber and initial heat riser, and then continuing with the method described above? This sort of thing...
OR... something better!
This seems to be the best place on the web, so please can you critique my plan or share your guidance if you've built one yourself. Thanks!
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