Alright so here goes:
As someone who almost exclusively vapes hash, aside from a hash pipe system with a deep bowl + rod (electrical or mechanical) your best bet is a vaponic or QC or double-glass style vape. Hell, even buy an Ubie (or 50) if you're lucky enough to find one. There's a reason you want this: hash vapes quite different to herb. Different temps, favors conduction, etc. So you do want something that offers a hybrid experience and also encapsulates the terps. You want something that you can drive into near combustion temps to get those hot and terpy water pipe rips, something most metal vapes will just nuke the flavor to (thus me not recommending dynavap or similar metal hybrids).
If you want metal, try the Stunner, the TA or the Tempest. Since these offer an encapsulated bowl, the pressure drop when you take a rip will compensate for the lack of conduction thus resulting in the best experience in convection hash rips IMO
I could tell you to go with a convection baller desktop but you do need to bump up the temp like at least 50C above herb temps which makes it hard, as well as necessary stirring... it's a good experience but time and trial has told me that your best bet if you wanna bake some 'trates is that you give it some conduction.
However if you do happen to want convection, go with the good ole sticky brick style direct flame convection devices and Opium tech it (soft alcohol flame). This yields awesome thick warm and milky convection hash rips (again, pressure drop makes the magic happen with hash) and can even lead you to the surprise charring or combustion so be careful!
What you basically want to do is create an alternative to the good old banger or skillet or straw for when the hash ain't melty enough or you're just not good with bangers/towers/whatever hype says we dab on now. One could even argue the good old Vaponic does a better job at terp preserving during the hit than a tower does, but that's a whole other can o' worms.
Get yourself some hemp fiber or unbleached cotton or something to put that hash with and you're golden. Make a pad, put your hash on top and let her rip. If you're using something pure convection or convection heavy, traditional hash will tend to bubble and inflate, poke that soufflé when it's nice and ready (use a hatpin or similar, thinner the better).
FWIW i've tossed normal melt into a banger and then just wiped off the remaining residue, usually works a charm and it doesn't need to be 100% full melt to be enjoyed on a skillet.
Always clean away any sticky stuff from the walls of any device with a q tip
Enjoy the melt, embrace the cure.
Any questions, just ask!
