Hello everyone. I got my damper with collar. see the attached picture. I have few questions before I installed it.
1. I think, The damper should be open vertically as picture says. because the inside blower/fan is sucking up-stair air as well. Having damper open horizontally at the same may block some air coming from above floor. right ?
2. The damper is not 100% stopped. It stills move 10 degree left and right if I try to move the damper. Is there any problem in noise when fan sucking air from ?
Hello everyone. I got my damper with collar. see the attached picture. I have few questions before I installed it.
1. I think, The damper should be open vertically as picture says. because the inside blower/fan is sucking up-stair air as well. Having damper open horizontally at the same may block some air coming from above floor. right ?
2. The damper is not 100% stopped. It stills move 10 degree left and right if I try to move the damper. Is there any problem in noise when fan sucking air from ? View attachment 666180View attachment 666180
Thanks!
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