"benick" wrote in message
After reading about it, I have come to realize that a clothes dryer will
suck the warm air out of your living area in very short order. I believe I
read the internal fans are in the range of 500 ft3/min, which means that
when they run for 45 minutes or so to dry your clothes, they are emptying
the rest of the place of warm air several times over, and pulling air down
the chimney as need be, ruining a fire if you have one going.


First off, the 500 cfm is bogus.
http://www.whirlpool.com/assets/pdfs.../W10100920.pdf
Venting systems for Whirlpool dryers must meet the following

requirements:

¦ The capacity to handle 200 CFM of air for each dryer in the

system.

¦ A back pressure of 0.0" (0 cm) to 0.6" (1.5 cm) of water

column when measured at the connection to the dryer.



From my observations of years of having a dryer, there is not all that much
air sucked out and it has never changed the fire one flicker worth. Try it
out before you go to drastic lengths to solve what is a non-problem.