Crimp the duct coming from the damper, if you don't have a duct crimper you can use needle nose pliers and a twisting motion to crimp the duct down. Takes a while, but it works.
By "duct coming from the damper", which end do you mean?Crimp the duct coming from the damper, if you don't have a duct crimper you can use needle nose pliers and a twisting motion to crimp the duct down. Takes a while, but it works.
Yes, that's what he means.By "duct coming from the damper", which end do you mean?
I'm guessing, the outside end?
Ah, I'm simply the one who is ignorant. I appreciate your advice!Yes, sorry for the confusion
Ugh that's true... Come spring, hopefully I'll be able to swap out the 3" end from outside the home, once it's warmer.Yes, that's what he means.
This is the right part. By the way by reducing the ducting your fan will not be as quite.
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noAbove ideas. Or see if there's 3" aluminum duct that you can use. Easier to crimp if necessary. Don't tape. Foil tape is robust but only good as its adhesive and it does fail over time.
You are correct, but he's going to be replacing the damper in the spring with a 4" one, so this will get him through until then and he can eliminate the reducer, which is a bigger problem.I believe the crimp needs to be in the direction of the air flow. That would mean crimping the 3” end on the reducer