We have two Fantastic fans mounted in our current van roof. When we have the penthouse installed they will both be "cut out" of the roof. We do like them. The newer low power draw multi-speed one that can be very quite is mounted close to heads (when sleeping). The older 3 speed (higher power draw model) is mounted just aft of the front seats. On a hot, humid night they can be very effective in moving air. I am thinking of mounting them on the penthouse roof w a similar location arrangement. Anyone else done this and what are the pros and cons you have found. I have noted that Jage on his green Ford van has a single one mounted in front of the penthouse (over frt seats).
Of course putting them up on the penthouse roof also depends if there real estate available for them without cutting through anything "important".
Len & Joanne
The Green TARDIS