Can you feel a decent flow of air coming out of the vents? If so, a
stronger fan won't give you much. If not, check the heater hose connections
before you start worrying about the fan itself.
Is the air coming out of the vents decently warm? If not, the heater valve
may not be properly open, or a heater hose might be blocked, or the heater
matrix may be clogged up. Using a cooling system flush might help.
There may be water trapped in the heater box, so the air you're blowing at
the screen is already damp. There's a pipe coming out of the bottom of the
heater box that terminates in a rubber bulb with a slit in it, that's
supposed to let out rainwater that gets into the heater box, but if the bulb
gets clogged with detritus then you might get water building up in the
heater box.
You can buy glass treatement products that are supposed to resist fogging -
I have no idea how effective they are.
That should give you a few avenues to check out before you start throwing
money at the problem!
Richard
_______________________________________________
Support Team.Net http://www.team.net/donate.html
Spitfires@autox.team.net
http://autox.team.net/mailman/listinfo/spitfires
http://www.team.net/archive
|