This is definitely *not* what the OP is talking about. He is talking about elect...

		ted_dunning 8 months ago \| parent \| context \| favorite \| on: Standard Thermal: Energy Storage 500x Cheaper Than... This is definitely not what the OP is talking about. He is talking about electrically heating very large amounts of dirt to temperatures of 600C or more. Your PVC tubing approach is talking about 50 times smaller swings.