Roof fan

We did a Hengs in two different campers now. We chose this method because the Hengs is a true retrofit, whereas the Fantastic Fan requires you to remove the existing vent (and possibly damage the roof and require resealing the roof). Ease of install won for me the first time, then the quality and air movement from Hengs made it super easy to use on my next camper too.

Maxxair 4500K. Reasonably quiet, has rain sensor and remote. The remote is actually the reason I chose it, vertically challenged DW could not reach it.

Add a variable speed control and the Hengs is quite tolerable. It sounds like a jet engine otherwise. Of course it's moving a lot of air too. I'm very happy with the Hengs fan in our RV. We never have to run it high enough to be noisy. And the install was straight forward and simple.

The Hengs is easy to install, but incredibly noisy.

I just installed a Maxxfan 7500k. It seems to have some advantages over Fantastic Vent but time will tell, I only installed it yesterday.

Fantastic fans have worked well for me.

If it is in the bathroom with that puny little fan and you don't want to tear into the roof like I did with the Fantastic Fan

I chose to put a Hengs VORTEX fan in the bathroom,It is a snap to do with very detailed instructions and it is multi speed and reversible.

Otherwise the Fantastic Fan is the top choice.

If you're handy, Heng's Vortex plus a vent cover.

If not handy, MaxxxAiree

i think fantastic fan still holds the number one spot