I snaked a power wire to the fan from the fan in the stool room. Just drop the inside covers and it's easy to snake a wire with a coat hanger through the attic area.
This is how I powered my MaxxAir power vent. I found this an easier alternative to a Fantastic fan since I did not have to replace the roof vent and disturb the roof seal. My fan has a thermostat, will push or pull air from the trailer. We find it helpful to run it when showering to draw any humidity out. It's also the highest point of the roof so it pulls the hottest air from the trailer.
John
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