Re: ice age

Posted by PackardV8 On 2012/8/12 8:50:41

The condensation issue maybe debateable. Maybe someone can verify condensation problems in the very early AC units of the 30's-40's.

With a possible exception of very high dollar cars with AC such as Cad, Linc, Rolls, MB etc my memmory tellls me that AUtomotive AC units ca 1970 - 2000 used striclty reciculation of cabin air. Not fresh air.

There is a problem with fresh air AC. Especialy in high humidity conditions when condensation is quick to form. Low humidity does not present a problem.

Let us not confuse early (prewar) recirc HEATERS with post war fresh air heaters with AC of any era. IIrc it was NAsh ca. 1948 that offered the very first FRESH air heater in the US. Possible exception would be exh. manifold heaters offered on Ford model 'A'.

Fresh air heating is a different world from fresh air AC.

As for filtering the air in a car for smoke and dust and pollen and so-forth is somewhat of a moot point. Moot in the sense that many people, whether they admits to it or not, are more than willing to lay up under the AC in their HOUSE while smoking 420, frying bacon in the kitchen, floral arrangements in vases around the house and keep the house so air tite so as to allow little fresh air into the house thus causing mold etc, etc, etc.

Or to put it another way:, not too many people ever complain about smoke blowing in their face on a friday nite at the local titty bar.