Open Fireplace Flue Design

This article series provides information about masonry fireplaces.

Open fireplace flue design. Lead approximately 1 8 mm thick. A fireplace flue damper enables you to control how much air flows up your home s chimney when the fireplace is in use. If it not symmetrical the fire will burn unevenly due to an all round the clear cross sectional area will. Though designs vary many common patterns have emerged through experience with successful fireplaces.

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. 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. Generally the damper opening must be 90 of the flue size.

The firebox design is critical. 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. Adjusting the damper allows you to burn a fire efficiently and safely. Design of clay masonry for sound insulation design of clay masonry for sound insulation.

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. This is a diy outdoor fireplace built using our plans without a chimney flue. 1 the area of the fireplace opening 2 the area of the flue liner and 3 the height of the chimney.

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. 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. In most situations the area of the fireplace opening is controlled by considerations other than the performance of the system such as aesthetics. Smoke and gases.

Properly a fireplace needs pleasing proportions and an appropriate relation of fireplace area flue size and chimney height. The firebox depth does not include the thickness of the facing material you see when looking at the fireplace. The other components of the. The design of residential fireplace chimneys is directly related to.

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. Here is a photo of a new masonry firebox in my own home.