Reversible Vent Fan

FF's are good in both directions until the chinese motor expires.

Last 3 RV's have had a reversible Fantastic Fan. Seldom used the intake mode. We do have the thermostatic control which is useful.

our FF moves air in both directions. we rarely have it pull air in.

Mine s reversable, and I have used it both ways, depending on the occasion and need. However, I haven't checked ours too closely, but most fan blades are designed with a curve like an airplane wing, to move air better in one direction. Doesn't mean that it won't work the other way, but there may be a slight difference. Probably not enough to notice. Observe most home ceiling fans, those blades are just flat paddles, and they will move air in either direction.

My Maxx Air only expels air, as it's uni-directional. I wish it had a reversible motor, as it is sometimes useful to be able to draw cooler or warmer air from outside, in.

Technical discussion aside, don’t buy and install a vent fan that doesn’t pull air in and exhaust air out as you choose.