Chucking my gas heater - how should I proceed
First some background info. I own a dirt cheap home that's about 90 years old that currently has a gas water heater, stove, and wall flame unit. I only live in the house for a few months a year during the winter (I teach English abroad), and for this year, I stopped the gas service until I would be back (since the gas company charges about $12/mo for no consumption service, which would be about $120/yr.) So besides the fact that I don't like a dangerous substance floating around, I have not been a fan of having these fixtures.
So I get a proof test inspection of the gas line, and it failed, with the only solution being a very expensive under the house check for the leak (this plumber said that he's seen multiple day jobs fixing these old houses!) So that's enough for me - time to take my utility's suggestion and go all electric.
I can get by with electric space heaters for now (my insurance company doesn't have a problem with gas heat), although I'm thinking eventually of putting in a complete electric HVAC system (I currently have window units), but that's an issue for another forum. So I will be getting an electric stove (also a topic for another forum) and water heater.
So my question for this forum is how should I go. Currently I have a limited power supply (I think it's 100A @ 120V), and would really like to get a water heater that could take the juice off of a current 120V, 20A line (I think I have 20A line, but it may be 15A.) I know that may be a slow heater, but it would be worth it for me to not have to pay the big bucks to get upgraded electric power. I suppose the only way that this could be an option is with a tank heater, since an on-demand heater would obviously take much bigger wattage.
I would appreciate any suggestions.