Originally Posted by Dags
There certainly appears to be a consensus in this thread.
However, just as things seemed so straightforward, I find myself intrigued by this comment:
I do have a gas hob. Hmm...
If you only use the heatgun for shrink wrap, then a stove will do you just fine, since you honestly don't do many shrink sleeves in general. If you used it for pallets or bumper guards, that'd get painful quickly. You might also bubble the paint or plastic since it'd work so slow. If you want to do more "serious" customization, spend $15-20 on a heat gun.