I have a Craftsman propane/map gas torch, which screws right onto the gas cylinder. It has a trigger button which triggers the gas flow and the built-in spark ignitor. I used to use it for industrial-grade heat shrink and cleanind plastic/foam insulation from the center conductors of hard-line coax cable, when I worked as a splicer for cable system rebuilds.
I've used them for years, and usually
buy the camping propane canisters at Walmart (cheaper than the torch-specific gas cylinders).
It also works great for soldering pipes, etc.
It's a bit 'overkill' for just wicks & wire, but I already owned it, and it certainly does the trick.
The trigger mechanism makes it very suitable for frequent, short burns.