And turned out that one of the smallest and an inexpensive part was behind many of our troubles, the ceramic holder of halogen bulb in the heating element.
Our products have been running well since the official launch in 2012 and I haven't heard of troubles with earlier units which have been in use already 3 years, but later at some point we got similar looking ceramic lamp holders from another supplier, and it was impossible to know it then that these were not of similar quality.
So certain percentage of these holders started to fail and lose contact to the bulb, sometimes already after first uses, and it was hard to understand how some customers said that vapors are not strong when so many others praise it as well as all the reviews.
So it was difficult times for us to realize this and fix all vaporizers with this problem, since it requires complete rebuild of the unit with shipping. But thanks to this, we found a solution, and not only changed to the highest quality lamp holder available, but also upgraded the whole heating element in many ways so that will be no more problems and also this made the vaporizer even stronger product than it was.
The larger heating element and bulb, the heating element provides even more even stream of hot air to pass trough the herb chamber and the hottest point of bulb stays farther from the herb so it is less likely to fry lowest parts of herb in the chamber even when herb is very dry and too much power used. And because air flows more easily trough it, and with more heat capacity in the bigger heating element, it naturally provides capacity for even stronger vapors with full chambers. Generally it is a nice upgrade, but the way for us to get there was stressful and for this reason also I was not active on this site. Since November 2014 we have had this upgraded element in production. Also the bulbs seem to be more strong, since I haven't seen yet any bulb spare part orders for them!