To those of you that allow your beer to finish at 80 to 85 F, what are you using to warm the wort?
For example, this time of year in Las Vegas, the temp inside the house is around 73, the garage is in the 40s. In the summer time, I could do this in the garage and refrigerate down to 80.
What's the best means to warm a 5 gallon volume of wort to 80 degrees?
I have a few seed starter mats, similar to a waterbed heater but smaller, meant to keep a seed tray warm - like this one
The information printed on the front indicates that it's designed to raise soil temperatures about 20 degree F above ambient temperatures.
If controlled from a Johnson A419, would it work? Is there something better?