Hi All,

I have ducted A/C througout the house. The house is mostly a single level house with floor ducting, but the back of the house is double story and has a couple of rooms downstairs with one ceiling duct, which is a square diffuser type as per pic:
Attachment 76884

I would like to shut this vent off completely on occasions so is one of those circular diffusers a good idea? I think they rotate and close off completely?
Attachment 76885

Am guessing the hole in the ceiling is round so the circular diffuser should fit.

Would think it would simply mean more air elsewhere, but would doing this cause any dramas??

I am having zoning issues like some of the other threads I have read, but I thought this would be a quick interim solution until I get around to sorting out the zone motors.

Cheers

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