Ventilation Fan Replacement - Size Problem

Discussion in 'Shower & bathtub Forum & Blog' started by golfer99, Jul 8, 2012.

  1. golfer99

    golfer99 New Member

    Messages:
    1
    Location:
    Washington, DC
    I am looking at replacing the NuTone 667RN (http://www.nutone.com/PDF/InstallGuides/667RNins87574.pdf) currently installed in our shower. I removed the grill to see what size hole was already in our ceiling and found it to be massive compared to other fans I have looked at. The inside housing for the fan is 9x9, but the circular hole cut in the ceiling is a full 13 1/8 inches in diameter. Most of the replacement fans I had been looking at are square or rectangular holes and they are several inches smaller than what is already cut. What are my options here? If I find a fan motor that would fit inside the current housing, can I stick it in there and leave the existing grill to cover the hole in the ceiling? If not, are my only choices to either find a huge fan that would also cover this hole or to patch the ceiling around a smaller fan?

    Thanks in advance.

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  2. jimbo

    jimbo Plumber

    Messages:
    8,997
    Location:
    San Diego
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