Vaping will mean your consumption should go down NOT up. (well mine has considerably)
As an ex-hardcore smoker, since I was 8 years old, who used to do everything with tobacco, including bong mixes, spliffs, normal fags, tulips, etc.. I cannot stress enough how wonderful it has been since joining FC and being deterred from using tobacco.
I won't even vape an eCig, it's not just a lung, toxins thing... for me ... nicotine is evil, and I refuse to be a slave to that mistress ever again. It has also helped in me cutting down on Caffeine as my tolerance has dropped since quitting nicotine.
If you want to vape tobacco you can, no one is going to stop you, but we are all saying DON'T, because it's good, sound, quality advice from people that know their shit and care to teach others.
Some vapes allow hash to be vaped in jars (glass / metal) so if / when it melts it doesn't go anywhere.
Others use cotton to try to soak up any leakage, but most will not use tobacco and those that do tend to use pipe tobaccos for flavour.
Perhaps you could use other bio-matter than tobacco or weed, there are plenty of alternatives such as those offered under the 'Herbs of the Gods' banner know as aromatherapy :
https://www.vapefiend.co.uk/aromatherapy.html
Maybe you will find your perfect match and will be able to then advise others on FC about the best bio-matter to vape hash on?