Do not use heater resistors .
Lighting , furnace / propane / fan 12v , water pump , fridge / propane 12vdc & 120vac .
Then inverter for AC cooling .
I also have 2 Honda EU2200i - that are setup for parallel - 4400 watts surge .
Most of my solar panels are 24v .
My last system was 12v with inverter & lead batteries , Ran all loads , including air conditioning and never went below 50% discharge .