There are a lot of unknowns here. I just started my apartment hunt. There's a chance that I will be able to score a place that allows me to use my old outdoor setup, but part of me wants to go electric even if that happens. So really, I'm trying to see what my options are so I can factor that into my search. Of course, there are a few other concerns that take priority.
I'm not exactly starting from scratch. I have a lot of the components I need for my RIMS mash tun, but it's far from finished. I'm hoping I'll be able to do no-sparge with that, eliminating the need for a seperate HLT, just like the guy in the link you posted. The boil is the real concern - If I end up with no 220v service, and a gas stove that can't do a full boil, I'm kind of dead in the water. Unless I did twin 110v elements run to different circuits, or a heatstick booster.
Anyway, I'm reading up a bit on a few sites, and I think a stove breaker should be able to handle a 220v element. Everybody else is doing it, anyway. What could possibly go wrong?