We live in TX and it's very hot here.. We had a 45' Navigator with 3 roof airs and nearly died from the heat. I personally do not believe that 3 roof airs can cool a 45 footer consistantly in the South .. I understand that we're not comparing apples to apples.. but you should listen to your friend... go with 4 or bus air. We upgraded to a 45' H3-45 with bus air and it will freeze you out on the hottest day. We love it !!
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