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.

Direct vent gas fireplace flue size.

Not all fireplaces require venting and some don t require direct vent pipe but the best fireplaces do. Check with your appliance manufacturer for approval. Napoleon direct vent firestop vent sleeve assembly for use with 4 inch x 7 inch venting systems. Empire boulevard direct vent linear fireplace 48 natural gas with matte black liner.

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. 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. 4 x 6 5 8 and 5 x 8.

Direct vent fireplaces on the other hand use natural gas or propane as their fuel and the exhaust fumes are significantly less hot. Directvent pro in combination with the gas appliance has been tested and listed as a decorative gas appliance system or as a direct vent heater system by a major testing agency such as ul csa warnock hersey or omni. As such the direct vent gas pipe that is used on these units has an aluminum inner wall.