"dogshit (with a side extremely-maybe lucky once)"?
you can only fit so much computation on some amount of power, and that's also highly influenced by type/execution of the computation involved
the "extremely-maybe": I'm extremely not going to bother even attempting to calculate the present statistical likelihood of being block reward winner (I can, and will, do better things with my time), but ito total computation possible from rando airbnb-miner vs structural-miner configuration it's just super fucking unlikely
I don’t know enough to know where to start.
easy: skip even trying. you, too, have better things to do with your time
Homes in North America are actually split phase 240v so it would actually be 240v * 200 or 48,000w. Not that I'm here to say you're wrong for your primary point, but the incoming supply is a 200amp fuse per leg (120v to neutral, 240. Leg to leg), with any imbalance returning though the neutral line.
Very thoughtful to ask, but they probably wouldn't even notice that on the electric bill. It's about the same usage as running an electric space heater.
On that note, saw they were warning people going on vacation that there are now scams that mega overcharge you to charge your car. So for anybody with an electric car on vacation, do be aware of that.