Some of you that use either wood or charcoal to fuel your sfb units might be interested in this little mod I did to the firebox lid on my Bandera. These units are real fuel hogs and I was thinking of a way to reduce the amount of wood that I use which is my main fuel source. This material is ceramic fibre board. It comes in 2'X3'X1" thick sheets which weigh 17.5 lbs per sheet. It has a working temp of 1832 degrees & a max temp of 2300 degrees. It is sold 6 sheets per box (min.) which is way more than I needed but what the heck. The cost was $17.47 per sheet. The goal is to reduce the amount of heat loss via the lid which is 16 gauge, on a good day. I strongly recommend that if one uses this material, that long sleeves be worn, along with gloves and a dust mask. I treated this like I was working with fiberglass. I used a Bear Saw which is made by Vaughan & Bushnell Mfg. Co. in Hebron, IL. The saw worked like a champ & I finished the edges & miter cuts with my right angle air motor w/2" button and 36 grit discs. I'll be puting this to the test next week-end to see if it does what I think it will. Here's a pic of the final install.