Thanks for the noise info on the Maxxair. I think all being equal in the noise department, I will order a Maxxair for the features. Most of the time we will be running it on a lower speed just to move the air a little. We have done without a fan for years so it will be an improvement. We have a popup Shadow Cruiser so when we open all the upper windows it doesn't take much to get a breeze going. I read on the web page that it can be run with the vent closed, which will help distribute the heat better for our late season trips.