Please read my posts before hitting the reply button. The true reason why you're getting too much heat from high powered vaping is simply because you don't understand how to correctly tweak all the other variables that keep the temperature down low enough, i.e., you are just letting the coil overheat as a result from the fact you're getting an inadequate cooling effect. What you have been doing is following the same basic principle as the experiment that 'proved' vaping causes very high levels of formaldehyde... no high wattage vaper vapes how you tried to experiment with high wattage vaping. None of them do.
A lot of vapers who vape at higher wattage do it MTL and they still have a hot vapour which is what they want because of the "hit" they get from it, rather from any nicotine content.