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I would like to build an outdoor fireplace without using a firebox, but use a class a flue. What would I need to do this?
Posted by Elite Deals - Chris M. on 24 October 2013 02:46 PM

Our Answer:

If you are site building a fireplace, but would like to use Class A pipe to vent it, you will need to use an anchor plate to transition from the firebox to the chimney. An example is the DuraTech All-Fuel Chimney Pipe Masonry and Zero-Clearance Fireplace Anchor Plate - For Chimney Pipes with an 8-Inch Inner Diameter - 9641. The plate will bolt over the opening that would be cut into the box to allow venting. Actual diameter of the chimney will depend on the size of the opening for your box. The ideal ratio is 10 to 1, which 1 square inch of flue to 10 square inches of fireplace opening. A chimney that is too small or large can cause drafting issues, including smoke spillage and overfiring.

From Section Page: Class A Chimney Pipe

ID: class-a-chimney-pipe

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