I made an insulated box to see if the ff would not freeze during the winter. We have temp down into the teens and below regularly here.
The box didn't cost me a thing. I had all the materials here. Only cost was my time.
I put a thermometer inside to see what the temperature difference is between inside the box and outside.
I came up with the idea after seeing one built for a stock tank
Awesome box of FF doom. err insulation =).