Honeybeat, yes the VHW has variable temperature and takes about 45 seconds to heat up but takes 2-3 minutes for optimal vaping temperature. The glass that is used is fairly thick and I like to get the glass as well as the heating element both at the proper temperature before vaping. As far as cooling down goes, I would say within 2-3 minutes, it would be cool enough to touch without getting burned. I have always been a huge fan of the Steinel guns and never really got deterred at how cumbersome it actually was but now that I have the VHW, the heat gun will be used for it's intended purposes. The VHW is silent so adds a bit of stealthiness versus the fan assisted heat gun.
Captainwolf, I tried using the heat gun without the lower intake and I was able to get some vapor but since there was no seal, the vapor to air ratio was lost. Mark does not intend to build a GG connection for the VHW but with the silicon sleeve, it makes a pretty tight seal and the resulting hits are dense, crisp, and potent. I'll update everyone tomorrow to see what progress the glass blower has made.