Here's an update and a couple more questions
Due to lack of time before winter sets in, resources and confidence, I decided to purchase the “Liberator” Rocket stove and build a mass around it. My RMH sits on a 7' X 3' cement pad. I wish it was bigger but that's all the space I have for it.
The stove and pipes are now assembled and I did a couple of test runs. Everything works fine, no smoke leaks etc. But there's one problem: the stove doesn't get very hot. I put a pot of water on top and after 2 hrs the water was steaming hot but still not boiling and the lid was on the pot! I don't have a stove thermometer but my room thermometer registered 27C/80F, it should have been cooking hot in that room. The company website shows a video where the Liberator heats up really hot. https://www.rocketheater.com/
(look at the second video, not the first).
The instructions say not to use more than four 90* elbows, I only have 3. On the pictures you will see that the whole system is a bit slanted. The reason for that is that the pipe that comes out of the stove is 7” off the floor but the other end of the pipe at the “T” joint, the pipe sits at 11” from the ground because I had to put an elbow under it that leads to my clean out door so it makes the whole system a bit slanted. So this is what I'm wondering:
1- The bottom horizontal pipe leans upwards towards the chimney while the top horizontal pipe leans downwards a bit, could this affect the draft?
2- Maybe I'm putting too much wood, or not enough in the feed tunnel, that may also affect the draft?
3 does it matter if my assembly including stove is not perfectly level?
4- What else could result in low heat?
The stove measures 32” high, 16” wide and the feed tube is 25” high. I'm using 6” pipes, total length of pipe from stove to ceiling cap is 11' 4”, and clean out pipe is 27” long.
I sent an email to the stove company and waiting for an answer, but I really value you guys expert opinion also.