Gjac...I'm attaching a photo so you can see that I don't have a roof vent, just an upper and lower side vent so its easy to reach the components. It has been running about 4 hrs now and it is down to 44 degrees so maybe the critter is going to be alright.
doug...thanks for posting those numbers. Makes me feel like maybe I'm not going to melt things down after all. I went out and measured down 8 inches from the top of the flue and checked the temp.

Then I checked the temp of this tube in two places, Does that temp difference spell good or bad?

