Ho guys. I decided to build a test RMH in my brothers little walipini. Everything worked out fine, however, as I've heard someone say this, my RMH is not "rockety" enough and there is still smoke coming out of the chimney which leads me to believe the RMH is not generating enough temperature.
Now, we dont have 8 or 6 inch pipes, we only have 5" pipes here. I calculated that we can have about 5-6m of thermal mass. Here are some pics from the build>
the heat riser was tilted so later we rebuilt it
laying down the pipes
So the RMH is functioning. There are no leaks. At times it starts pulling air much faster, other times not. The barrel is hot, but not as hot as I'd expect.
I suspect the problem might be in the gap between the top of the heat riser and the top of the barrel. I think it turned out about 8cm, and I think it should have been 4-5.