UPDATE: Ok I read the pdf:
https://github.com/pidtuner/pidtuner.github.io/blob/master/assets/doc/PID%20Tuner.pdf
I see that I did not record the required data. I am sorry for the post. I thought you just needed the input x output of the running loop. I now see that you need to go through the step changes in input and record how the loop responds.
A question, if the operating range is from 75 deg F to 85 deg F, do I need to step through all 10 deg F in 1 deg increments to get a reliable sample? In this case not such a big issue, but if the operating range was larger, that would take a long time.