"Edwin Pawlowski" wrote in message
.. .

"Joseph O'Brien" wrote in message
Dryer + elbow + vertical duct + elbow + horizontal duct + elbow +
vertical duct + elbow outside.

By my initial calculations, since I have 3 90-degree elbows (not
counting the one leading outside), I reduce my maximum duct length by
15 feet. Does that sound right? I counted the elbow coming out of the
dryer... is that right?

Yes and if you have a long run, you are asking for problem down the road.
Mine is in a downstairs bath/laundry room and with only two elbows need
cleaning too frequently. Move the washer if you can.


What about using round sheet metal heat duct material, perhaps with one
square or rectangular spot in the middle with a cleanout hold for a vacuum
hose?