On Mon, 10 Sep 2012 14:39:07 +0100, "David WE Roberts"
wrote:


Also, as rbel says the fans may be very quiet.
In which case how do you tell when the fan is on high speed?
Neon indicator?


Whilst the difference in the fan mechanical noise for my TD160 unit is
not discernable in the bathroom there is an increase in the air
movement noise through the shower vent grille.
--
rbel