Nighttime Ventilation questions for newbie..AC or Fan?

yankeeslover wrote:
.. that's $500.00 that im not sure I want to shell out for a fan...im not very handy person, but it doesn't look to hard to install the unit over the old one esp if I caulk it correctly, its the wiring.. ?

if you install a maxxaire over an existing vent you do NOT caulk it at all. I suggest having somebody else do the install. like I said, use the L brackets to install the cover, do NOT drill into the roof of your RV.
bumpy