On Wednesday, May 9, 2018 at 9:25:30 AM UTC-4, Ed Pawlowski wrote:
On 5/8/2018 10:33 PM, wrote:
how can i find my outside vent. i have looke all over, could it be on roof?? my house is old built in 1970.





Doubt it is on the roof but could be Usually on the wall outside the
dryer, under a soffit. Can you follow the vent inside?

1970 is not old. My last house was 1948 and not really old. My son's
house was built in 1750 as were many in his area in that era.

And having it running when investigating helps. If it's working you
can hear and smell it. Or in winters past, ever notice vapors coming
out? Also possible it goes somewhere it shouldn't, like into the attic.