My chimney is 8" x 12". What size Lyemance damper and cap do I need?
Posted by Elite Deals - Chris M. on 24 October 2013 03:49 PM

Our Answer:

This damper is designed to be used with flues with an inside dimension of 61/4" x 11" to 8-1/8" x 12-1/8. If your 8 x 12 measurement is your inside dimension, then this damper should work well for you.

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