Gas Fireplace Flue Design

A traditional gas fireplace uses indoor air for combustion.

Gas fireplace flue design.

To provide adequate draft and safe venting of combustion products the chimney flue for a fireplace has to be adequate in size or cross sectional area. Ventless fireplaces are standalone structures that function off natural gas propane alcohol based gels or electricity but do not require a vent or open chimney flue to heat a room like. Fireplace flue size specifications relation of fireplace size to flue opening dimensions table of required chimney flue size and flue dimensions for masonry fireplaces. Sizing the opening determining the size for a fire.

This article series provides information about masonry fireplaces. Though designs vary many common patterns have emerged through experience with successful fireplaces. It takes air from inside the home to burn natural gas or propane and sends the fumes up a flue. Prefabricated fireplaces factory built or prefabricated fireplaces are relative newcomers to the fireplace scene.

A flue is a vertical pipe that exhausts the gases naturally by drawing them upward and out of the home through the roof. Straying too far from accepted practices may result in a fireplace that burns poorly or fails to conform to building codes. Dec 3 2019 explore brian trimble s board fireplaces chimneys followed by 201 people on pinterest.