We use our microwave and coffee maker early in the morning but try to avoid the cook top. After 7 or so in most parks you can start the generator and then use the cook top while topping your batteries off for the day.
With 4 T105 AGM Trojans there is ample battery but the voltage will drop quickly if you have been using the heat and the fridge was on the invertor overnight.
All electric coaches is the trend in the larger A's
I think you are seeing more LP in the C's and smaller A's due to the lack of battery capacity, generator size, and usage.
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