I bow to your superior knowledge. You are without a doubt correct about the insulation/sand thing. It is done now and I am going to leave it and see how it goes, It will no doubt effect the burn characteristics but I'll see if I can get the hang of making it work well enough to heat this small space, should be interesting. This is my first rocket, there will be others
I am trying to source the light insulation materials you have mentioned but have not yet found them.
Thanks for the tip on which way to load the wood. Its in the book but I forgot. As for the vacuum thing I do not really expect to use it on a regular basis, and I think I have about 7 vacuum motors so I don't think I'll run out.
It is indeed a clean out cap to the right of the rocket at about the 9 meter mark, however, during the rebuild I added another one immediately to the left of the stove where the exhaust leaves the barrel.
The stove is working with the short stack currently but I am heating it just for short periods each day to 'break it in' and slowly get out the moisture. Later, if it does not work so well I have a long pipe ready to try. But I think you misunderstood, the rocket is not outside, the greenhouse is already built.
Yes, the vacuum is too powerful but I could not resist giving it a try, I already have a nest of bolts welded up for the drip fed waste oil burner but this is really just an experiment. If it works then I will leave it installed just to give myself options, if I should at some point need to really quickly heat the greenhouse in a hurry.
I have not seen the P-channel yet, can you provide me with a link?
Ok, I have found all of your help and encouragement invaluable & I will keep you informed how the stove operates. But I would like to ask your advise on my next project. Its not a rocket stove but it is quite closely related. I am renovating my house, when I bought it there was an old "drum-stove" it is a traditional design very common here which incorporates its own thermal mass. Very much like a very big heat riser (210cm tall, 70cm dia.) the fire is lit at the bottom, heat goes up the center to a second chamber at the top (gas burning chamber) and it then sinks all the way down and goes into the chimney at floor level. It was in bad condition & I demolished it & am starting from scratch. I have the original plans (dated 1898).
would you guys consider looking at the plans to see if you can suggest any modifications, using your rocket knowledge?