Want a portable dehumidifier to work with heater fan

 I want to run a portable dehumidifier with an external dehumidistat
(switch that goes on when the humidity is above a certain level).
And I'd like the furnace fan to go on when the dehumidifier does, to
circulate the air in my house so it'll dehumidify  my whole house.  
The dehumidifier has to have a manual control to do this, because
the ones with electronic controls forget their settings when power goes
off, or they have a capacitor so they remember the setting a short time.
Am I right that this would be a simple thing to do?  Can anyone describe
to me how it could be done?  I'd get an electrician to set it up, but I'd
like to get an idea of how it would work.
There are various dehumidistats around.  Honeywell makes one that is
wall-mounted and directly connected to the house wiring, also one that
is an interrupt switch and plugs into a wall outlet.  
thanks
Laura

  I wrote:

I mean a mechanical control.  My tongue got tangled, or my virtual tongue,
my fingers.

Laura

 On Jul 1, 6:02 pm, p...@cyberspace.org (Graven Water) wrote:

Dehumidifiers creat heat, mine can raise basement temp 3f. Do you have
AC. It depends on size , tightness of house, humidity level and temp
of house. If its big leaky and humid you will need a big unit that may
cost as much to run as AC and heat your home 2-5 degrees.
Dehumidifiers are best when outside air is under maybe 65. You dont
need a humidistat outside, its the inside you are doing.

 Hi, I don't mean to put the dehumidistat outside my house, but rather on a
wall inside the house.  "external" meaning external to the dehumidifier's
control.  You put the dehumidifier on continuous dehumidify, or on a very
low humidity setting, and give it power through a dehumidistat switch.  

Laura

 I probably got an answer to this ... Somebody told me what you to is
connect the R and G terminals to turn on the fan.  So the dehumidistat
switch would connect the R and G terminals as well as turning on the
dehumidifier.  Also they told me that if there's central AC, there would
have to be a relay to avoid feeding power to the AC.  I don't have AC now but I
might get it.  

Comments?

 Laura