I have no idea why people reply to innocent questions in this manner.
However, if you paid attention to my question you might have perceived that
it was sparked by frustration with all of the cheap closers available that
either get stuck in the open position, or never work as advertised. The fact
is the previous owner is an engineer, and why he would have installed a
non-closing vent is beyond my comprehesion.

wrote in message
ups.com...
You surely haven't been to your local hardware store or you would know
dryer vents have auto closers