Hi mena,
The lowest draw I've observed in the last week is 1800 watts. It has been as high as 5000. I know my case is special--but there is no possible way I could have enough panels installed on the rv to support the heating needs.
I can do one night when the temperature is 0 C (32 F) on battery power, if I restrict heating to the bedroom, but it takes days to recover from that on solar alone.
I think I can have a "shot" at running the air conditioner if I add 800 more watts, but 1600 would be better.
