William LeMieux wrote:Ok, my bad. Not the manifold but maybe the heat exchanger? I'm new to the lingo so please forgive and bear with me. Whatever it's called, it surrounds the heat riser. I would think that brick could take the super heater air slamming into it better than could a metal barrel, also capturing and retaining the heat instead of immediately radiating it into the room. So I'm curious as to whether the heat riser could be surrounded by brick as opposed to a metal barrel. If there's nothing wrong with doing so I'll start a new thread on the topic. I have many questions.
PS- Thanks for the warm welcome...
S Bengi wrote:Mono and Poly doesn't really make a big difference. Mono is technically worse but they are more flexible so it might be worth the tradeoff.
Hans Quistorff wrote:Also check such places for plainsong shavings and sawdust These hard woof materials are most excellent for worm composting in my experience.
David Huang wrote:Awesome score, Eric! That sounds like it will be an ongoing resource for you too! It reminds me of the free scrap I used to see at a place that made moldings back when I used to do some woodworking. I may need to look into that myself as it does seem like a fabulous source for easy kindling if nothing else.
I did my inaugural test burn in my rocket mass heater this evening. It was fantastic! It lit up beautifully and easily, with a solid draft pulling all the smoke into the burn chamber. I am amazed at how much heat the little amount of wood I burned put out! For a cold start in my old wood stove it would have just been barely warming things up. I decided not to do a long burn thinking it might be easier on the wet cob/mortar sections to more slowly evaporate out the moisture. I did get some cracking in the cob laid down yesterday to seal my barrel down. I'm not surprised as I had a hard time envisioning that not cracking as the barrel heated up. I can't wait to see how this goes once I add the pea gravel mass to the system!