You can take hot showers with a tankless Propane water heater as well assuming there's water pressure, costing < $300 on the low end. Sure, proper ventilation is important...
Gas spoils & does not store for very long. Diesel & propane are both better at storage.
You can even run generators off propane, though at less power than gas. There's even dual fuel (Gas & Propane) generators you can purchase for < $300 USD. It won't power your house, but it will at least be something which can charge batteries & run small appliances. They are loud though. If you own a house, getting a proper generator is the better choice. If you need something off grid or in an apartment (running on the balcony for ventilation), a single smaller generator or 2 in parallel will work. Smaller generators also save on fuel.
At the end of the day, multiple fuel sources will probably work. Wood/coal/propane/kerosene for heat, solar/diesel/propane/gas for electricity, etc. Most grid down scenarios last less than a few days.
Being able to boil water is important as well. There are often boil alerts when there are brown outs.
