That is a big DEPENDS. If you have 2 six volt deep cycle batteries for the house, limit 12v light use, run the 12v ceiling or Fan Tastic vent several hours a day, you could go 48hrs without running the genny. If you have an inverter, watch lots of TV, run other 110v appliances, then maybe 24 hrs. Of course that's just the 12v system. AC is going to be strickly genny or shore.
John & Clare Lyon
2007 43.5' Monaco Dynasty Palace III (All Electric)
Towd: 2011 Chevy Equinox