ClearVu Install

[Mark Blatter]

I have been working on installing my CV1800. It is all up but for the ducting. And of course, the first piece brings up a question. The square to round conversion piece that ClearVu provides has an ID of 6.25". I am using metal ducting so the OD is a hair over 6", leaving a pretty big gap all around. I would rather not just tape or caulk it in place and hope it holds (nor attach it with screws and caulk) or doesn't leak. The flexible tubing is a bit bigger OD, but still a biggish gap. The acrylic gates I bought have the same issue, so perhaps part of the problem is trying to use both PVC and metal.

Has anyone else run into this issue, and if so, how did you solve it? I checked ClearVu's webpage and couldn't find anything. I also reviewed the photo galleries and it seemed that many just screwed/taped the pieces together.

I am calling ClearVu but wanted to ask people here for thoughts and suggestions as well.

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[glenn bradley]

I'm going to bet something like a Fernco boot is going to be your best bet.

[Matthew Curtis]

I used a fernco fitting that I bought for $1.50 from a Habitat for Humanity store. It worked great and was dirt cheap.

[Jim Becker]

You could also wrap the duct with Gorilla tape until the diameter is just snug enough to fit inside the unit and then use foil tape to seal and hold it in place.

[Chris Parks]

Make two flanges which fit tightly over each diameter and silicone each to the duct and cyclone and bolt the flanges together. Plywood or MDF would do for material.