I saw a tin can rocket stove design and have some questions, not about the design but some of the supplies that are used. My main concern is the use of insulation. Insulation is itchy stuff that is not healthy for one to breath. The plans call for using the insulation that will be next to high temperatures. All I could think is toxins. Maybe I am wrong but I just question the use of basic attic insulation. I know there are plans for a clay pot rocket stove that calls for perlite (which I do not prep) but this on calls for something we can all find easily. Here are the plans: Build a #10 Can ROCKET STOVE: It Cooks an Entire Meal With Twigs! I also wonder about the high heat paint. I recall someone once using spray paint to clean up their grill but I do question if it really is safe.