Jesse Biggs wrote:Thanks Tyler. I don't know how the weight is going to shake out. Working with insulating type materials is throwing some curves at me. I've got four 50lb. bags of fire clay and I'm mixing that 50/50 with perlite which weighs next to nothing. Hopefully I won't go over 200 lbs. as the idea is that this could be moved out of my basement at some future point. I'm forming it in my basement which is also its first resting place (fingers crossed it works out!) The plan is to build the whole thing in bite sized "modular" chunks that could be moved with a few extra hands and w/ out too much difficulty.
Kevin Prata wrote:On a YouTube video - I cannot remember which - I saw a guy mixing vermiculite and refractory at a 4:1 ratio for his rocket stove in a 5-gallon plastic bucket. Is his 4:1 ratio workable in a 20- or 30-gallon system?
Actually now that I think of it I wonder if a concrete pre-cast fabricator could make these things with a given receive of castable refractory and vermiculite. There's a huge market!
See my drawings attached here. I'm curious, what are you using to make the form molds? Are you able to share other drawings or tips here?