Hello Matt,
I've just downloaded your plans for the Tiny Stove - I appreciate all the work you've put in!
I work with hot glass in kilns and furnaces, and have some experience with ceramic fibreboard. While it's light, easy to cut, and obviously heat resistant, I don't have quite so much confidence about the long term durability.
We use mullite kiln shelves which are solid - a similar consistency and hardness to firebrick, and are available in various thicknesses. The pieces would naturally have to be fire-cemented together.
We regularly take the mullite shelves up to around 1800ยบ F, but haven't gone much higher than that.
Assuming I can cut it relatively easily, if I wanted to construct the core in this type of material, or fire-brick for durability, how do you think it would affect the thermal performance?
The ceramic fibre would no doubt have more of an insulating effect on the surrounding bricks I'm guessing??
