I've used portasol gas irons for years, to avoid splutter don't run it at full blast, half way is fine.
you can also put it in a jar to keep the wind off it when you're not actually soldering.
Just don't touch the jar for a while afterwards, it gets effin hot.
'86 1.9 DG, 4 spd, tintop, camper conversion.
Split case club member.