Is excessive tumbling hard on clothes?
Does it always get hot inside the dryer when you have the temp set for warm or hot air, not plain air?
Where I'm staying, the little dryer has only two temperaturs, controlled by a push button and represented by a full sun and half-set sun.
The first time I did my laundry, I was afraid half a sun would be too hot and it would damage my shirts, or even the elastic in my underwear. At home, I have 4 or 5 temperatures plus "air' and I use the lowest that isn't air, and it still seems hot inside the dryer, when I reach in for clothes. I usually don't let the dryer dry the clothes completely, because once my shirts looked bad when I did that, iirc. I also don't remember if it had a permanent bad effect on the shirts or not (I don't iron anymore so they have to look nearly decent when they dry.)
So that's why I was afraid to use half-a-sun, and I dried all my clothes on the line. (They have a very nice system in this n'hood. About 6 lines 2 inche apart from each other, about a yard long, and all of it hidden by a stone wall with the stones arranged so there are holes. (Unlike some n'hoods where you can see the whole family's clothes all over the back balcony or even iirc from the window.)
The clothes dried fine on the line but the next time I was in a hurry. I tried both positions, and it never got hot inside the dryer. Not the slightest. And my clothes didn't seem to dry. So I took them all out and spread them over the back seat of the car, then went away for a couple days.
They dried fine on the back seat, but when I asked about this, my landlady said it takes 40 minutes. So the next time I let the clothes dry for 35 minutes. For some reason I had to stop then. They were still "humid", cool to the touch. No water seeping out, but I doubt they was water seeping out when I took 'em out of the washer. (I'll pay more attention next time.) IIRC, my sta-press shirts can dry in half that time at home. I let the clothes dry on the bed this time. Same thing the next time.
But I wonder if 40 or 50 minutes or 2 hours of tumbling will have a greater wear factor on the shirts than 20 minutes, or haning on the line. ???
FWIW, the dryer goes one direction for a couple minutes, pauses for 5 or 10 seconds and then reverses.