Open Fireplace Flue Design

1 the area of the fireplace opening 2 the area of the flue liner and 3 the height of the chimney.

Open fireplace flue design.

If it not symmetrical the fire will burn unevenly due to an all round the clear cross sectional area will. A fireplace flue damper enables you to control how much air flows up your home s chimney when the fireplace is in use. Stainless steel and cast iron flue dampers commonly are opened with a touch button control system. The use of a chimney flue is not wrong at all but we know they aren t necessary if the structure is built the way we build.

Straying too far from accepted practices may result in a fireplace that burns poorly or fails to conform to building. This is a diy outdoor fireplace built using our plans without a chimney flue. 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. The rear wall of the firebox rises vertically from the floor of the fireplace and then begins to slant towards the fireplace opening just at the top of the gas logs.

Smoke and gases. Standard built in fireplaces sometimes require use of a long metal pole with a hooked end that you use to reach into the chimney and manually pull down the lever of the damper doors to open the flue. Fireplace flue size specifications relation of fireplace size to flue opening dimensions table of required chimney flue size and flue dimensions for masonry fireplaces. Properly a fireplace needs pleasing proportions and an appropriate relation of fireplace area flue size and chimney height.

Design of clay masonry for sound insulation design of clay masonry for sound insulation. Lead approximately 1 8 mm thick. In most situations the area of the fireplace opening is controlled by considerations other than the performance of the system such as aesthetics. Here is a photo of a new masonry firebox in my own home.

If the existing damper doesn t fully open or if the design originally was too small the damper opening must be increased to solve the smoking problem. This article series provides information about masonry fireplaces. Adjusting the damper allows you to burn a fire efficiently and safely. Though designs vary many common patterns have emerged through experience with successful fireplaces.

Fire below to provide a clear passage into the flue. The other components of the. Open fireplace design and construction. This is not to say that you absolutely can t use a chimney flue with our designs we just know that they aren t always necessary.

The firebox depth does not include the thickness of the facing material you see when looking at the fireplace. It is also important to have an adequate damper opening size to allow smoke to easily pass from the fireplace area into the flue area.