Gas Fireplace Flue Design

Sizing the opening determining the size for a fire.

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. Unlike traditional masonry fireplaces most factory built fireplaces are metal and come from the factory as complete units with a firebox a specific chimney system and all miscellaneous parts. A traditional gas fireplace uses indoor air for combustion. Dec 3 2019 explore brian trimble s board fireplaces chimneys followed by 201 people on pinterest.

Fireplace flue size specifications relation of fireplace size to flue opening dimensions table of required chimney flue size and flue dimensions for masonry fireplaces. It takes air from inside the home to burn natural gas or propane and sends the fumes up a flue. 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. Though designs vary many common patterns have emerged through experience with successful fireplaces.

Area flue size and chimney height. 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.