Howdy again
I have read all the replies and couldn't understand why there seemed to be some negative responses. After reading my post 20 times I realized I had  wrote 3 hours instead of 13 hours. The fridge held steady at 10 degrees because the fridge thermostat was only set on three. When cranked up full it froze water with in 24 hours.

jimriho
I used tontine insulation a round cabinet , The thermostat is a no name brand my son supplied  so can't give any info. on it sorry.
Hope this clarifies a couple of things.
Al

Thanks for the info Al I think some of the folks were suggesting that 10 degrees was not a very good result but you've now covered that in the above post. Jim