The exhaust opening doesn't do much, at all. I'm not sure why they bother.
The plastic front plate is not required. A fan blowing towards the AC will
also help cool the room. Blowing away from the AC doesn't do much
Cigarette smoke is toxic. They should never be lit or burned in the presence
of people, children, pets, or any animal that breathes.
Christopher A. Young
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It's an older Westinghouse window A.C. Besides the temperature control,
HI - LOW - OFF and Automatic Fan controls, it has this lever that says
Exhaust OPEN - CLOSED. With the front panel removed, I can see it flips
open a small door inside the unit.
My question is what is that for, or what does it do? I guessed that it
would take some of the indoor air and blow it outside with that lever
set to OPEN. I held a cigarette near it with it set both ways and
pretty much could not notice much difference. The smoke just scattered
around the room from the fan. So what is it for?
To get the most cooling and least energy usage, is it better to leave it
open or closed?
One other thing, Does the front panel really serve any purpose other
than make it look nice? I found that it seems to feel much cooler with
that panel off. Maybe it's not really cooling better, but the air comes
out better. That panel seems to restrict the air flow. I'd rather have
it look ugly and feel good, than look good and not feel as cool.
This may be common knowledge, but I've either had central air, or no
air. This is my first window unit. This has been such an extremely hot
summer I finally installed it. It's been sitting in the shed for at
least 8 years since it was given to me.