>If one of those units is enough for the bus, and it's on 30% ... This is why some full time RV'ers are picky about what state they are in for a given season.

>If one of those units is enough for the bus, and it's on 30% ... This is why some full time RV'ers are picky about what state they are in for a given season. If you're in Texas, or another hot climate in the summer in a large bus, you'll need two or three tons (24,000 to 36,000 BTU) of A/C capacity (sometimes more!) to keep it habitable through mid-day and late afternoon. If you have a large (cover the roof) solar/battery/inverter system, you can run all night without having generators start (and interrupt everyone's sleep) in most cases. Most people that I know of use LP for heat.