Florida heat fog on car windshield - removal

I've gotten different advice on how to remove heat fog (moisture
build-up) on car windshields when driving in FL. Some say AC, others
heat. Some say roll the window down. What is the quickest and best
way? Sometimes it happens during driving and rolling every window
down seems to be the quickest fix. It can be wiped off with a towel,
but sometimes comes back during driving. I'm not used to this type of
heat fog being from the north. Advice?

On Sun, 06 Nov 2005 08:55:49 -0500, Tim923
wrote:

I've gotten different advice on how to remove heat fog (moisture
build-up) on car windshields when driving in FL. Some say AC, others
heat. Some say roll the window down. What is the quickest and best
way? Sometimes it happens during driving and rolling every window
down seems to be the quickest fix. It can be wiped off with a towel,
but sometimes comes back during driving. I'm not used to this type of
heat fog being from the north. Advice?

Use the Aircon. I doubt that Florida humidity is much
different to Gold Coast humidity.

Doesn't need to be the coldest setting, just needs to be on
and preferably directed to the screen. Once it clears,
direct the air anywhere you want.



Cheers, Alan, Australia

On Sun, 06 Nov 2005 08:55:49 -0500, Tim923
wrote:

I've gotten different advice on how to remove heat fog (moisture
build-up) on car windshields when driving in FL. Some say AC, others
heat. Some say roll the window down. What is the quickest and best
way? Sometimes it happens during driving and rolling every window
down seems to be the quickest fix. It can be wiped off with a towel,
but sometimes comes back during driving. I'm not used to this type of
heat fog being from the north. Advice?

I don't live in Florida but my parents were retired in Port Charlotte
for many years. I noticed that everyone always had the AC on in the
car and never had much of a problem with fogging. It could be that if
you leave the air exchanger open (allowing outside air to mix with the
AC) it will cause fogging.

Brian Wickham

There will be a defrost setting which will quickly clear the inside of
the windshield. It will normally combine both heat and air conditioning
to dry the air and direct the air to the front windshield. If the fog
is on the outside use the wipers.

Tim923 wrote:

I've gotten different advice on how to remove heat fog (moisture
build-up) on car windshields when driving in FL. Some say AC, others
heat. Some say roll the window down. What is the quickest and best
way? Sometimes it happens during driving and rolling every window
down seems to be the quickest fix. It can be wiped off with a towel,
but sometimes comes back during driving. I'm not used to this type of
heat fog being from the north. Advice?

Tim,

I recently moved to Florida and have the same problem. The best
solution is to ignore it & hope for the best just like the natives do.
It's one reason why Florida is a "no-fault" State.

Mark

Brian Wickham wrote:
It could be that if
you leave the air exchanger open (allowing outside air to mix with the
AC) it will cause fogging.

I think I had the air exchanger button on.

"Tim923" wrote in message
...
I've gotten different advice on how to remove heat fog (moisture
build-up) on car windshields when driving in FL. Some say AC, others
heat. Some say roll the window down. What is the quickest and best
way? Sometimes it happens during driving and rolling every window
down seems to be the quickest fix. It can be wiped off with a towel,
but sometimes comes back during driving. I'm not used to this type of
heat fog being from the north. Advice?

I think if you check the owners' manual of your car, you'll discover that it
recommends you put the heat setting halfway between cold and hot, set it to
"defrost/defog" and turn on the air conditioning. If the vent is closed,
though, it may cause, the windows to fog up temporarily the next time you
turn on the air conditioning. To prevent that, put the airflow on the floor
when you turn on the air conditioning the next time around. KM
--
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visit NASA, play games, read jokes, send greeting cards & connect
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Tim923 wrote:

I've gotten different advice on how to remove heat fog (moisture
build-up) on car windshields when driving in FL. Some say AC, others
heat. Some say roll the window down. What is the quickest and best
way? Sometimes it happens during driving and rolling every window
down seems to be the quickest fix. It can be wiped off with a towel,
but sometimes comes back during driving. I'm not used to this type of
heat fog being from the north. Advice?

Make sure that the ventilation system is set for fresh air rather than
recirculation. Crack the windows to allow air to escape and the air will
circulate faster.

On Sun, 06 Nov 2005 18:48:18 -0500, Dave Smith
wrote:

Tim923 wrote:

I've gotten different advice on how to remove heat fog (moisture
build-up) on car windshields when driving in FL. Some say AC, others
heat. Some say roll the window down. What is the quickest and best
way? Sometimes it happens during driving and rolling every window
down seems to be the quickest fix. It can be wiped off with a towel,
but sometimes comes back during driving. I'm not used to this type of
heat fog being from the north. Advice?

Make sure that the ventilation system is set for fresh air rather than
recirculation. Crack the windows to allow air to escape and the air will
circulate faster.


Are you sure? I'm no expert but it seems to me that in Florida with
its moisture laden air you would want to minimize the amount of
outside air you let in to the car.

I guess we need the input of someone who lives in south Florida.

Brian

On 11/06/2005 11:49 PM Brian Wickham plucked Senior Frog's Magic
Twanger and said:

On Sun, 06 Nov 2005 18:48:18 -0500, Dave Smith
wrote:



Tim923 wrote:



I've gotten different advice on how to remove heat fog (moisture
build-up) on car windshields when driving in FL. Some say AC, others
heat. Some say roll the window down. What is the quickest and best
way? Sometimes it happens during driving and rolling every window
down seems to be the quickest fix. It can be wiped off with a towel,
but sometimes comes back during driving. I'm not used to this type of
heat fog being from the north. Advice?


Make sure that the ventilation system is set for fresh air rather than
recirculation. Crack the windows to allow air to escape and the air will
circulate faster.




Are you sure? I'm no expert but it seems to me that in Florida with
its moisture laden air you would want to minimize the amount of
outside air you let in to the car.

I guess we need the input of someone who lives in south Florida.

Brian


Really the situation is no different for south Florida or any other
coastal state. The correct term is condensate not fog or heat fog.
I've driven in the Florida Keys from Key Largo on south to Key West.
The windshield didn't get condensate because I don't drive with the AC
on MAX. Once I get the cooling I need, I set the fan on low and bring
in air from outside. I live on the New Jersey Shore and use the same
technique there. Periodically, you have to rinse the windows on the
outside as salt builds up. If you aren't washing the car, a garden hose
will do the trick. In a pinch you can clear the front windshield with
the window wash spray.

Conversely in Northern climates you can get condensate on the windshield
in the Winter when defrosting the windshield. I find not putting the
defroster fan on full blast usually defrosts the windshield without
getting condensate on the windshield.

--
________
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Brian M. Kochera
"Some mistakes are too much fun to only make once!"
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