My discussions with Miele
Indicate that the Miele Condensor dryers run at about 50degC whereas most vented dryers over here run at 40-42degC
That said, my new Miele condensor dryer even on low heat shrivels up anything synthentic. I now have lots of expensive underpants and socks that now have elastic like a scrunchie. The other thing I've found with a condensor dryer vs a vented dryer, is that Knit fabrics, like tshirts, tend to shrink badly, whereas in a vented dryer the shrinkage was much less slight.
I'm very dismayed that Miele didnt tell me about the 30 day return policy on dryers when I bought it, as I would've returned it and bought an F&P TL dryer instead. So I now have my early 70's whirlpool dryer stacked on top and put all synthetic items in it, leaving the Miele to dry the non synthetics.