In the 'mountains' of western Massachussets it often gets
cool in the evening and I find that the windscreen fogs up.
The GTs heater system is little help, and more often than
not makes things worse.I've been pondering a solution based
upon one of those little ceramic heater blowers that mounts
to the dash -- but even if I increase the 'moisture absorbing'
capacity of the air by heating it I am still blowing it onto
a windscreen cooled from the outside by airflow over the car.
What I really need is dehumidified air rather than warm or
cold air. I've thought about putting a peltier solid-state
cooling device either before or after the blower, to cause
the moisture present in the blown air to precipitate somewhere
other than on the windshield. Does anyone know if there is any
advantage to chilling the air before heating it over heating
it before chilling it?
Am I likely to find the heater box and air ducts to be
impaired from age? I wonder if I could increase the
airflow of the present defogging ducts and then mount the
peltier devices in the duct, out of sight?
The quick clearing of windows is what I miss most since
getting rid of my modern car.