In California power outages are very frequent (PG&E is now cutting off the residential power upfront, to avoid fires and associated liability). I’ve experience

In California power outages are very frequent (PG&E is now cutting off the residential power upfront, to avoid fires and associated liability). I’ve experienced 4-5 outages last year, a couple were local, a couple were widespread. One lasted 2 days. Fortunately I do have a small 3.2kWh battery backup power, so I can keep the refrigerator from defrosting. I do think that this is sufficient to power the air furnace as well, but I haven’t tried. The residential internet outages also are pretty frequent, but we don’t notice these as much as power outages.