I wrote:
> I asked Mizuno what sort of sheath heater he uses. He uses a 500 W model, > such as the Flexible heater "M2 type micro heater" available at this > website: > By the way, the 500 W version is 2 m long. I don't know how he folded it to fit it into the cell. I asked him. 500 W: https://www.monotaro.com/p/7075/6017/

