My friend's dryer leaves partially wet clothes. I plan to clean it and remove any lint.
My question is - Do dryers have heat insulation that looks like lint and should not be removed?
Here are few pictures:
While this dryer looks different than mine, I think what is in the doors is actually lint and not heat insulation (to reduce heat loss via doors)?
And the thing in the back probably is lint as well that should be cleaned:
Update #1 (the other side of drum that shows close up of picture #3):