Post by brushburner on Sept 25, 2016 3:52:46 GMT -8
Hello,
Not sure which forum to put this in, so hope this is the most appropriate place.
I am trying to construct a primitive outdoors stove or oven, for burning brush and other debris from my garden (not really a garden, it's plot that I'm clearing for trees and bushes while building a house).
I'm thinking of building a rocket stove mainly for the following reasons:
- A chimney for safety, so sparks don't fly around
- A clean burn, so I avoid smoke and don't bother the neighbours
- Fun
I have researched a bit on the forums and elsewhere, and have seen Peter's suggested dimensions for an oven, but I have some initial questions that can guide towards a design:
1) An oft cited advantage of rocket stoves is that they burn a minimal amount of fuel. But in my case I actully want to burn a lot of fuel as quickly as possible, but still obtain clean combustion and avoid sparks. Would I fare better with just an old oil-barrel with holes in the bottom? Or a regular bonfire?
2) What is a safe chimney height to avoid sparks (this would help me dimension the remaining parts)
3) Should I think about which way the opening of the burn chamber faces with respect to the wind direction? I was thinking it should be open directly in the wind direction so the wind pushes through the burn chamber and up the chimney
4) I would like to craft it out of mud/clay and possibly a few rocks (for fun, and because I have it around on the plot). But can I even obtain a decent smokeless burn with a rugged material such as this?
5) I was thinking of just a primitive design of just a domed burn chamber and a circular chimney pipe. Advanced features such as a P-channel is probably not possible to construct with such crude materials, but are there other small changes I can make to a primitive design? A secondary air intake maybe?
Lowered or heightened burn chamber? Size of fuel intake and chimney throat?
I hope you can help me get started on the best path for this project!
Not sure which forum to put this in, so hope this is the most appropriate place.
I am trying to construct a primitive outdoors stove or oven, for burning brush and other debris from my garden (not really a garden, it's plot that I'm clearing for trees and bushes while building a house).
I'm thinking of building a rocket stove mainly for the following reasons:
- A chimney for safety, so sparks don't fly around
- A clean burn, so I avoid smoke and don't bother the neighbours
- Fun
I have researched a bit on the forums and elsewhere, and have seen Peter's suggested dimensions for an oven, but I have some initial questions that can guide towards a design:
1) An oft cited advantage of rocket stoves is that they burn a minimal amount of fuel. But in my case I actully want to burn a lot of fuel as quickly as possible, but still obtain clean combustion and avoid sparks. Would I fare better with just an old oil-barrel with holes in the bottom? Or a regular bonfire?
2) What is a safe chimney height to avoid sparks (this would help me dimension the remaining parts)
3) Should I think about which way the opening of the burn chamber faces with respect to the wind direction? I was thinking it should be open directly in the wind direction so the wind pushes through the burn chamber and up the chimney
4) I would like to craft it out of mud/clay and possibly a few rocks (for fun, and because I have it around on the plot). But can I even obtain a decent smokeless burn with a rugged material such as this?
5) I was thinking of just a primitive design of just a domed burn chamber and a circular chimney pipe. Advanced features such as a P-channel is probably not possible to construct with such crude materials, but are there other small changes I can make to a primitive design? A secondary air intake maybe?
Lowered or heightened burn chamber? Size of fuel intake and chimney throat?
I hope you can help me get started on the best path for this project!