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roostonu's avatar
roostonu
Explorer
May 04, 2018

Keeping it cool?

How do you keep the inside of a large class C cool while driving long distances in hot weather? I'm thinking the cab A/C isn't going to do much for the House. Do you run the generator and roof top A/C?

Just curious.

16 Replies

  • Hi,

    I've had some success by running the roof air on fan only. This seems to help distribute the cab air to the rest of the RV.

    On a hot day I will run the roof air via a generator for an hour before I stop.
  • If you crack open a rear vent, especially if you can run the fan on a low "air out" setting, or window in the back of your coach and run the dash AC on high {aim the vents straight back and not in the face of the passengers}, it will go a long way toward cooling the coach.

    In all but the most extreme temps this often will be all that you need. On a large Class C, 32' + obviously this won't be as effective as one that is 32'or less but it can often eliminate the need to run the generator to feed the roof AC. Running your generator will work but is going take at least half a gallon an hour and often more than that which will hit your mileage/wallet.

    :C
  • Start your generator and turn on the roof A/C while driving. It won't hurt anything.
  • You can if you want to. My car accident cools down my class c enough for driving. Nobody s8ts back there though.
  • YES !!! Xhot or Mountains ~~ Turn on Genny run roof top AC.

    Saves gas in long run. JM2¢ ~~ YMMV