Direct Vent + Sawdust Insulation

Old 06-18-02, 01:19 PM
Jeff Placzek
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Direct Vent + Sawdust Insulation

We are aving a direct vent fireplace installed by professionals (licensed, insured, etc.). When they began cutting the hole in the wall for the venting, they discovered that we have old sawdust insulation- which would potentially be a bad thing for the vent pipe to be in contact with.
The solution that they say is standard is a metal box that is installed, and the vent pipe goes through the metal box to the outside, which prevents the sawdust insulation from contacting with the vent pipe directly.
Does anyone out there know about this. I am concerned that this needs to be done in a way that is the safest possible manner in order to best insulate the vent pipe from having any contact with the sawdust, etc.

Does anyone out there install fireplaces for a living, or have some direct experience with this?

They are suppose to finish the job tomorrow, so time is of the essence. Thanks in advance....
Old 06-18-02, 06:11 PM
Mike Swearingen's Avatar
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I don't install fireplaces for a living, but I don't see a reply by anyone who does, so I'll give you my view.
I've seen many woodstove and coalstove flues in old houses, and they are safely passed through wooden walls, ceilings and roofs with the standard metal boxes, if they're aren't encased in brick.
What they're recommending should be fine.
Goode Luck!

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