I'm going to be purchasing a new KM Skutt 1027 kiln for my home studio and I'm wondering about which size fire brick to purchase. Right now I have an old 1027 that needs work I'm unable to do myself and don't have the time to have done (also don't want to sink any more money into it) so I'm going to sell it on CL. I have the shelves for that size and if I go up to the 3in, I'll need all new shelves.
Is the 3in worth having to to buy all new shelves? Is it really more cost effective energy-wise and does the extra insulation really make a noticeable difference for glaze cooling? I'll loose a little space on the inside, too which is a factor.
I'm super new to all of this and I'll upgrade the shelves if it's really worth it since this is a kiln I plan to use for many years. All thoughts and suggestions are welcome! Thanks so much!