Very ingenious. I would go with Ewest's suggestion of a timer(15 amp) as the thermostats will stick with prolonged use, and an appliance 6ft cord. I see you have a heavy duty extension, but that much current for a long time may heat it up. Just keep tabs when you are there. Will you be covering up the open end?

BTW, anyone, I have only caught and eaten a few small YP in Tx., but found them very good. How do you compare them with BG for table fare?