I am building a Hybrid Electric/Compost heated hot tub. The plan involves a 55gallon drum (single person) surrounded buy leaf compost contained by 5 pallets. I have a timer and 1000W electric bucket heater. I also have a drain spout and valve. I will insulate the top with a thick piece of styrofoam. I hope to keep my pile active through the winter and enjoy the hot tub. Thoughts?