That's what the generator is for. To supply power in the absence of shore power. If you can survive on a hot day of travelling without the rooftop air, more power to you (pardon the pun). We ran the genset pretty much the entire time on the road. We had a previous MH that had the genset right behind the engine manifold and sometimes while travelling on 100 degree days, it would go in overheat shutdown mode. It was getting more hot air from the V10 exhaust manifold than fresh cool air from outside. I chalk it up to a MH design flaw. Anyway, I installed 2 HVAC registers in the bin door to allow more fresh air and never had the issue again. Was never a problem parked.
