Tucson-Al

Hi BillyO, I just discovered this thread after firing up my forced air forge for the first time today. It appears, unless you changed things, that my design is identical to yours. However, it seems to me that I do, in fact, need to have the air flow change on the “high” side when the PID turns on the gas. If your design didn’t change, what did you do to make it work so well? Thanks, Alan