Yah, have one of the pistol Wellers, two temps with dual lights. You are correct, very heavy duty. A little overkill for electronics and my train layout wiring.
What I really liked about the Heathkit stuff is that you got the greatest assembly manual which you could use to not only build the unit, but also calibrate and troubleshoot, and fix it if a component went out. And, the circuit diagrams and boards are shown. Really cool stuff. Modern kids, with all their inane texting, etc, just don't what they are missing. Many of them have to be shown where the key goes. These kits, along with the old full house Gilbert Chem sets (yes, you could blow the house up, and gas yourself big time), Erector sets, etc, were how we learned how things worked and how to design neat stuff.
Sorry for the wandering, but hey, this stuff has always helped in understanding how to fix Alfas, among everything else.