Just a quick question, I have never had the opportunity to use my mantle, ive used them in labs in the past but never this way.
I have a bolec(?) 1lt has no temp control so im using a variac I got on eBay ages ago, only got around to using it today.
Anyway the system is working fine I'm refluxing some p-MethoxyPhenol. The variac is regulating the voltage in the exact way I had hoped, holding the exact temperature I want, however, this is my question; Is it normal for the variac to hum? and get hot (too hot to put ones finger on for longer then a second).
Anyway expect an update in the methoxyphenol thread with dSLR pictures