Here is a great walkthrough video of an a-frame camper:
https://youtu.be/VTkDiYhX4nw
1. There is a switch, for me it is under the table. It has a red reset button on it.
2. I don’t store mine at home. I take the battery out and bring that home, so can’t help with that question.
3. I am all ears!
4. Furnace runs of battery and propane.
5. (I think) Propane: stove; propane and 12V: fridge, water heater and furnace (they need 12V for the control boards); 12V only: fridge; 120V: AC. I think the fridge is the only one you can change your selection on.
I think I got most things right, i am sure others will correct me if not.