Last month I made a few saisons at 80°F (27°C), and was able to maintain that temperature with a single fermwrap. Now, for some reason, a single fermwrap is only getting the temperature to 72°F (22°C). I haven't pitched the yeast and its been 48 hours.
I figured, if one couldn't do it, maybe two of them could, so I wrapped another fermwrap over the first fermwrap. Now I am at work and am wondering if this is a firehazard.
I have a RaspberryPi that is supposed to shut the power to the fermwraps off if the temperature exceeds 80°F, but if there is some unknown bug, perhaps the power won't get shut off. The fermentors are inside of a fridge that I've set to 65°F.