Also, try using the whip on your DBV without tubing (like a trumpet - as that's how the tubing comes in to contact with the DBV whip - since it's actually on the inside of the whip the stream of heat hits directly in to the tubing) and it can get pretty damn hot....
Without the tubing, it's a wand (glass bowl). And although glass heats up fairly slowly, it holds the heat for a while, so yeah, sucking on the end of the wand wouldn't be comfortable. But I think you'd be surprised to find out how quickly the temp drops just a short distance from the screen. Again, if it makes you feel safer, just get some Silcon brand silicone tubing from usplastic.com. It's cheap and the temp range is up to 500 F.
vapefiend Reviewed by vapefiend on . Worried - Are stock DBV/7th Floor tubes safe? I've posted this on another forum, and they seemed to be very confident in the safety of 7th Floor tubing, and I've seen many other forums recommend them as "the place" to get tubing. So I thought I would come here for a second opinion. So, I'm worried. I've read that the 7th Floor tubing is food grade PVC tubing, which has low operating temperatures. Apparently food grade PVC only has an operating temperature of 150 F degrees. The other forum I posted on had the general consensus of "by Rating: 5