My T.P. wheeling and dealing feedback is here.
Opinions are like assholes, everybody has one, and it stinks more than mine.
Yo Homie, That my chainsaw ?
Pati, improbe et vince
turn on the ones you need. Run the furnace at night, fridge during day etc. Alternate. I can run one or two of these devices together usually with my 1850 watt.
Be sure one breaker has some lights, another furnace, another fridge/kitchen. I don't need to run it all at once.
The Great Kazoo's Feedback
"when you're happy you enjoy the melody but, when you're broken you understand the lyrics".
Also look at Depression-era tricks for preserving food without electricity. We used to have sporadic power outages in Honolulu when I was growing up and the radio would broadcast tips like putting your meat in a container and pouring lard over the top to seal it away from the air.