I love the Eagle Bill’s shake & vape for just those reasons.
It’s an almost all glass vaporizer with just a couple of brass screens which I switch out for stainless steel ones, and I might even get rid of the main one and only keep the small screen which keeps the herb or hash from being inhaled.
There’s a big opening on the top which needs to be sealed and I use a cork from a champagne bottle which fits perfectly. I prefer cork to other vaporizers that use resins like silicone and plastic, and even metals and ceramics. The cork does’nt get heated either but is just a lid to keep the vapors from escaping.
It’s shaped like a regular tobacco pipe and has conduction heating which means that the glass chamber collects as much or little vapor as one wishes before slightly lifting the cork whilst clearing the chamber with a tiny drag which suits me well as I have a lung disease and am bordering asthma so I am always looking for mild ways of vaporizing. Perfect as I have an issue with long, hot lung busting hits. Whilst the vaporizer community seeks big clouds I am seeking light, flavorful ones.
It is sold as a torch vape and it performs great as one but just as good on a stove, and IMO controlled heating beats torches everytime. Stove heating also means that there’s no battery issues or torch issues, no butane combustion, no metals or ceramics being heated or other unwanted materials/flavors/vapors.
It’s also the cheapest vaporizer that I know of. It costs 15€-20€. It’s made out of glass and will break if dropped but at that price I don’t mind buying an extra for back up. The qualities of it makes up for the risk of buying a new one now and then if I should need to.
It is also perfect for my dosage as it does micro doses as well as any other of my vaporizers.
The things that it lacks are battery heating and water filtration but it does’nt really need it so it’s quite possibly my favourite vaporizer - and I have some great and classic ones like volcano classic, silver surfer, vaponic, MFLB, arizer air & EQ, dynavap.
If you really wanted to you could just add a silicone whip to the mouth piece and connect it to a bubbler, I guess. But with the tiny drags of cooled down vapor I don’t really feel the need to. And that’s from someone with a lung disease and airway problems. Look at my profile name - that’s how concerned I am about these things.
At 15-20€ there’s no reason for your friend, or anyone else, not to give it a try imho.
It’s not a very good vaporizer as it’s sold due to the vapor escaping from the top but once a cork is placed on top it’s fantastic, for my needs at least, and your friend seems to have the same needs as me. It’s funny how I have newly bought vaporizers that cost hundreds of €’s but a 15€ vaporizer, the first one that I ever bought 20 years ago, is pretty much my end game
Edit: it’s also a on demand vaporizer which means that you only heat your material when you want to take a hit which makes it ideal for small tokes and light use. The volcano is expensive but the bags make it good for small tokes and quite lung friendly although the air/vapor from it is dry making it a bit harsh. For light use one can fill a bag half full or use a smaller bag.
Second edit: the cork mod works well with torch heating as well so one does’nt have to use a stove. I just much prefer not inhaling combusted butane or the risk of it unless I’m outdoors and your friend sounds like he would be the same. I also really dislike having to deal with torches - refilling them (as you’re inhaling butane which will also will be absorbed ones skin unless you’re wearing plastic gloves), buying new ones, constantly searching for the highest quality lighters and butane, the risk of burning oneself etc.
You’re meant to shake the vape in order to stir the material between hits but with the cork in place I just knock the cork lightly with the lighter or snap on it with a finger.