"Dave, I can't do that" wrote in message
...
We are looking at alternatives to leaving windows open for swamp
cooler exhaust.

I found up-dux but 70-bucks for 10-bucks worth of simple parts does
not cut it when we need two of them.

I have ordered two metal registers and thinking of cutting holes in
the ceiling.
http://www.amazon.com/Speedi-Grille-...peed i-Grille

Using some fly screen between the register and the ceiling to keep the
spiders and bugs out and we should have an OK exhaust. Yes? No?

I can't see the need for the flap on the up-dux, so here's the
question.

Do I need a flap?

If there is a compelling reason I can make some vent boxes with flaps
to go into the ceiling, however, I am thinking that just the register
then some magnetic plastic sheet to cover the register in Winter would
work just as well. All for under 20-bucks for two vents and covers.

I can spare the 2-minutes of my time twice a year to install/remove
magnetic flaps.

Helpful thoughts?

Dave

============

I made insert frames that fit snugly within the trim around my windows
to seal them better. They have weatherstripping around the outside to
adjust the snugness, and some have brass latches made from reshaped L
hooks to resist wind pressure.

The winter frames are covered on both sides with clear polyester film
that has held up very well since 1981. The summer frame for the air
conditioner is glazed with bird-proof acrylic as well as the film and
has doors on either side of the A/C to make installation easier. I
open the window, lay in the custom shelf that takes the weight off the
storm window frame, plop the A/C down on it, press in the frame, and
then slide the A/C back and forth to let both doors close. Then I tape
the gaps.

If you can make rigid corners in wood frames that's a good way to seal
windows.

-jsw