Direct Vent Gas Fireplace Flue Size

4 x 6 5 8 and 5 x 8.

Direct vent gas fireplace flue size.

For example an 8 x 8 square nominal clay chimney flue tile liner has inside dimensions of 6 3 4 x 6 3 4. Not all fireplaces require venting and some don t require direct vent pipe but the best fireplaces do. Ok you need an exhaust system for your new direct vent gas fireplace. You can find some of these fireplaces here if you re looking for a vent free option you can find some great options here yes the best fireplaces on the market generally use a direct vent venting.

Please see a list of hearth appliance types and the respective required category of vent pipe used on each in the table. The venting capacity of a rectangular or square masonry flue if translated directly into actual or measured square inches of cross section is less than a round chimney flue of the same square inches of venting capacity. Dura vent directvent pro vertical aluminum low profile vent rain cap for vent pipes with a 5 inch inner diameter 58dva vc. Check with your appliance manufacturer for approval.

As such the direct vent gas pipe that is used on these units has an aluminum inner wall. Empire boulevard direct vent linear fireplace 48 natural gas with matte black liner. Direct vent fireplaces on the other hand use natural gas or propane as their fuel and the exhaust fumes are significantly less hot.