The heater cover does get quite hot, especially if you're using beads. I turn mine off when I'm not using it. The SSV and DBV heat up in minutes, so I don't see the point of leaving it on.
I have the Silver Surfer version. Elev8 did a great job with the design.
Their ruby balls heater cover and cap is a significant upgrade over my do it yourself version.
It helps to have talented designers and glass blowers around.
visit VGoodiez. They have a lot of very good options available and will help you sort out exactly what you’re looking for. Their customer service is outstanding, and they‘ve never steered me wrong.
I still break out my Thermovapes once in a while. I have been babying my Cera and the flavor is fantastic. I also have an Iolite somewhere. I used it quite a bit when they first came out.