especially the hacking and coughing for hours part...
you know what's worth mentioning - the solar bowl! man, smoking with a magnifying glass rocks!
A volcano set on max, is no longer vaporizing your buds, it is burning them, just like smoking out of a pipe or bong or joint or anything else.
That's just false. No, it doesn't burn anything. The Volcano is not capable of burning weed. The highest temperature you can set it to is still not high enough to cause plant matter to combust. Even with the temp set all the way up, the weed turns brown. It does not turn to ash whatsoever.
The vaporizer produced THC at a temperature of 185° C. (365° F.) while completely eliminating three measured toxins - benzene, a known carcinogen, plus toluene and naphthalene. Carbon monoxide and smoke tars were both qualitatively reduced by the vaporizer, but additional testing is needed to quantify the extent of the decrease.
Significant amounts of benzene began to appear at temperatures of 200° C. (392° F), while combustion occurred around 230° (446°F) or above. Traces of THC were in evidence as low as 140° C. (284° F).
The term of 'combustion' in the vape world is also subjective.