I'm finally getting around to installing an auxiliary fan in my dryer
vent line. I'm planning on using a 12V inline bilge blower fan
available from marine accessory dealers (west marine, boat US, etc).
My dryer uses a flexible aluminum hose for the first 6-8 feel then it
connects to a rigid aluminum vent mounted horizontally under my deck
and exits 18' later. While this works well and gets the moisture
well away the drying times have increased somewhat. A previous post
to this group recommended several "boost" alternatives and the bilge
blower make the most sense as it is moisture resistant.
The blower will be installed inline between the flexible hose and the
rigit vent pipe (same diameter of 4"). Being 12V it will be powered
by a transformer connected to AC.
So, here's where my question comes in... in lieu of a hard switch
located at the dryer location, does anyone know of a type of switch
that will detect when the power is on to the dryer. I am aware of
moisture sensors, electrical load sensors, etc., but does anyone know
of anything that will allow the 12V transformer or blower to be
activated when the dryer is on and deactivated when the dryer goes
Thanks in advance for all your terrific suggestions!