I'm looking for water heaters! I need about 3 or 4 50-gallon electric heaters and one or two 20 gallon electric ones. The thermostat has to work on at least the 20 gallon one and a 50 gallon one but I would prefer if they all worked. If you know any plumbers that have junk ones let me know! I'm trying to build up equipment for a biodiesel processing plant.