Just to be clear and not spread more garbage, everything in bold print in this post are lies put out by Wicked Roots, the maker of the Vapezilla.
If it's like the herbalAire (I would assume so) the heater is completely isolated from the vapor path. The teflon is perfectly safe at the low temps involved. Teflon on cooking utensils is safe up to 500 F.
is there any software or board inside the hv to control temp. ??
There must be. Haven't heard any complaints about it.
Here's an example of some of the outstanding info out there. This is what
http://www.marijuanavaporizer.org/happy-vappy-vaporizer-review-marijuana-vaporizer/ has to say about the Vappy.
"This is a non adjustable vaporizer like the Herbalaire but worse. Super light taste. Very slow warm up and heated plastic kills. Don?t waste your money."
This is one of the fake review sites put up by Wicked Roots. They list both the herbalAire and HV in the catagory of 'Bad Vaporizers'. They also say the Volcano is dangerous to use.
The review sites have no sponsors and no contact info. That should be a big clue as to their intent. They're also way out of date, listing vapes that aren't even made anymore.
This was at the end of the Vapezilla review (after they were done trashing the Volcano):
"From a health point of view, Wicked Roots are the only manufacturers that are taking the time to make sure we are not inhaling anything other than pure vapors."
There are other fake sites set up by Wicked Roots too-
www.420vaporizers.com is one. Here's the lowdown on the Surfer from that site:
"Silver Surfer
Fake version of the Original Vapor Brothers. Longer warm up, same efficiency, higher price."
And on the Vapor Bros. review we find out that the VB's aluminum heating element (which had tons of failures by the way) is much better than ceramic elements, which tend to explode.
"The Vapor Brothers Vaporizer is a whip based vaporizer system. This vaporizer has an aluminum heating element . There are many fakes that use ceramic heating elements such as the VaporDoc or the Silver Surfer. These units that are currently using the ceramic heating elements have been reported to explode on the user. Be aware of this fact when purchasing fake duplicates."
Bottom line, the Happy Vappy is a good, safe vape and a lot of people have been satisfied with it. It's not as good as the herbalAire IMO and it's certainly not the same vape. Like the herbalAire, you won't get big, thick vapor hits from it, but it's an efficient design where you don't have to grind your herb to get it all vaped. It's not going to be the choice of the informed, discerning buyer, because there are other direct draw vapes that put out more satisfying vapor for the same money. But it's not dangerous to use or a ripoff.