selecting a wood fired kiln design in Equipment Use and Repair Posted Thursday at 08:32 PM · Edited Thursday at 11:53 PM by terrim8 · Report reply A few of us at a shared studio are thinking about building a wood fired kiln. We also want to also use it for salt or soda firings. We have access to some free wood from a mill down the road I thought I'd see what designs people like, pros,cons,etc . Comments, thoughts??? The 300 cubic ft John Thies one looks nice.