If this type of cap stops wind from going down the pipe, does it also hinder or stop positive draft from going up the pipe? Would you just get a neutral draft?
Posted by Elite Deals - Chris M. on 24 October 2013 03:47 PM

Our Answer:

It would not hinder natural draft as long as the cap is matched appropriately to your appliance. For example, this cap has a cross-sectional area of 28.3 square inches. As long as this is sufficient for your fireplace, it will work just fine for you.

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