My first design for the VCB Vaporization Chamber Bowl was glass on glass
back in the day when Martin RooR was the only guy in the business even using
glass on glass. I developed the product with the help of a scientific
glassware company and it looked great and worked great until you needed to
pack another bowl. Because there is no thermal break (i.e. A silicone
o-ring) the lower bowl and upper intake evenly absorbed heat from the
convective air stream and became so hot all over that you couldn't take the
pieces apart to pack another bowl until it cooled down a few minutes later.
With the design we currently employ using a medical grade silicon o-ring
(not in the path of the air flow) serving dual purpose as the soft friction
that holds the pieces together and a thermal barrier you can always grab the
VCB around the lower section of the upper intake and the lower stem to
disassemble right after taking all but the longest of
extraction/inhalations. And even then it's a lot shorter wait to
disassemble without cooking the fingers than it would be with a ground joint
glass on glass connection.
Apply the same lesson learned with the glass on glass VCB to the VCB to VHW
connection combined with my personal preference for the ritual of putting
the heat source to the bowl while pulling and it should be clear why we
didn't go glass on glass. I do usually skip the use of the carb handle and
just use my index finger of the hand holding the water tool to push the VCB
up just enough to carb and clear without taking the wand out of the intake
for maintaining the melt, but don't need the wand and the bowl connected to
do this...the connection would be clumsy at best in this circumstance.
I'll be the first to admit though that Glass on glass connections between
the heat source and the extraction chamber look very cool and the herbo is a
great example of functional art...the problem is practicality. Now on the
water tool to down stem connection I'm all about the glass on glass
connection and have been using them since Martin RooR turned me on to the
concept back in '99. We've often been asked why our VCBs don't fit to the
water tool glass on glass (like GotVape offers) and the answer is simple:
it's not practical for easy and functional clearing of the tube which I
consider not just an essential part of the ritual, but obligatory etiquette.
VripTech has always been about practical, utilitarian approach to the best
vapor...not the easiest, cheapest, smallest, or most portable....just the
best vapor. Now with the wand we have gotten a little bit easier, a little
bit cheaper, a little bit more portable while going ALL GLASS and benefiting
greater spin of the convective flow for accelerated rate of extraction (of
paramount importance for vaporizing herbs where the aromatics and the
actives release across a broad temperature range).