How many BTU hot plate do you need??

[Blackgrub79]

I have an 8-gallon still and have been using propane to heat it but I was interested in making an indoor setup to run the still. I'm interested in using a hot plate or some electrical to heat my liquid.

Is there a suggested plate or BTU to get? I'm trying to do more indoors because I have noisy delivery people who like to go and drop off packages at the back door. Also, be nice to do the weekends I stay up late at night watching TV and playing music.

I'm sure someone already talked about it here and did a quick search with little information my guess is my search Fu is weak here. Thanks!