I am into the 2nd burn Season with my Old Mill Mini Stoker upgraded to Coal Trol Controls. Before firing up my stoker my room temperature was around 66 degrees and it was cold outside...maybe mid 30's. I lit the fire with a propane torch, charcoal, and added a little coal after it got going. I did not use the fuel feed mode when first starting and my stoker seemed to go into a normal operation almost immediately. My set temp is at 69 degrees. Life was good and my initial fire lasted about 9 days with no problems. I then had to shut it down o go away on business for a week.
Upon returning from my trip I started my stove back up in the same manner. The house temp before starting was about 65 degrees. Again, I did not use the fuel feed mode to assist in lighting...just propane torch, charcoal, and added some coal as it got going and put it into normal operation immediately. My set temp. being 69 degrees. So, what happened was the stove started to burn at its maximum rate...which I expected...however it didn't slow down until the temp reached 75 degrees. Once it hit 75 degrees the burn started to taper off into maintaining the set temp. Everything is working fine.
I guess what my question is, is why did it go over my set temp so much and continue at what seemed like maximum burn rate? And why did it overshoot so much?