My concern has always been more about the heat in the basement. On a hot summer day, it can get well over 100 degrees. I run an indoor/outdoor thermometer in my coach, with a unit in the bays.
On my last coach, I installed a 110 volt, inline bathroom fan, that ran through the floor in an an unused area. On hot trips, I would run it to draw some cool air into the bays. There is more and more electronic equipment being added and moved to the bays, by Newmar. The heat has got to be hard on the equipment.
Don & Mary
2019 Newmar Dutch Star 4018 (Freightliner)
2019 Ford Raptor