Quote Originally Posted by Ginevive
Holy moley; I have used the ZM rheostats for years now with no problems.. what setting did you have it on? I keep mine at less than halfway up, and the temps are just right; then again, it is a bit warm in our house usually.
The room temp was 80~F. The rheostat was at the minimum possible ... If I turned the knob any more Counter-clockwise, it would have turned off. It's not the 500, its the cheaper one I have ... recommended by a member here. I will get a Helix T.