Originally Posted by
canam73
Ok I think I was on the right track, then. If you blow the fan through the hamster wheel in the same direction it pulls air, their won't be quite as much resistance so you won't have to work as hard and won't sweat as much. That would make riding indoors better.
Not quite. Two totally unrelated things. I set up a regular room fan about 4' in front of my bike, aimed directly at my chest and torso. It serves absolutely no function in providing or reducing resistance. Its job is to keep me from committing suicide when I still have two hours to ride. Even at low fan speeds, the air passing across your skin provides significant cooling through evaporation.
The hamster wheel fan, if you have that type of trainer, produces its resistance as designed whether or not you are overheating from lack of ventilation. FWIW, I use a KK Road Machine trainer that is fluid based so I have only distant memories of the wind-based trainer experience.