Standard Chimney Flue Size

Fireplace flue size specifications relation of fireplace size to flue opening dimensions table of required chimney flue size and flue dimensions for masonry fireplaces.

Standard chimney flue size.

It is important for the size of the chimney to be correctly calculated to match the fireplace opening. Socket type joints and self aligning joints are available in round flue liners. Please call us if you have any questions or need further assistance. Masonry fireplaces are built to varying sizes.

Capping one of these chimneys requires either a standard single flue chimney cap with legs or brackets or a top mounted model. Venting a masonry fireplace. Chimney size specification requirements for chimney flues and vents diameter height etc flue diameter and height requirements for category i draft hood and fan assisted appliances. However generally speaking a rectangular chimney flue size should be at least one eight of the fireplace s opening.

200 mm is required. Btu input maximum ratings height dimensions other factors. In comparison a 12 inch chimney size provides a cross section of 113 inches through which to vent smoke. 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.

If the flue is circular then it should be at least one tenth the size of the fireplace opening. As a general rule the diameter of the chimney should match the flue collar on your wood stove. Tables of metal masonry chimney flue vent sizes vs. Superior clay manufactures a complete line of vitrified clay flue liners from 3 to 36 diameters in round flue liners and from 4 x8 to 24 x24 in square and rectangular flue liners.

Flues should also mirror the size of a chimney. If a chimney s diameter is six inches then the flue should also measure six. 150 mm of either floor components ceiling components or rafters. This handy guide is provided to assist you in choosing the right size and type of chimney liner for your home.

Venting a wood stove. Neither chimney nor flue liner may change size or shape within 6 in. If you need to convert round liner dimensions to oval or rectangular try our liner shape calculator for ordering multiple sections of liner pipe try our chimney liner and flue pipe length calculator. Even though this tendency can be regu lated by adjusting the damper us ing an oversized flue wastes space and materials.

Chimney wall thickness should be a nominal 4 in. 32 to 36 wide 25 to 29 high. The most popular range of sizes. This article series provides information about masonry fireplaces.

A stainless steel flue lining of the same size as the stove outlet will solve this problem. Superior manufactures flues with holes contoured flue rings and flue. A flue that s too large may cause the fire to burn more vigorously than necessary. Single flue chimneys without extended flues this kind of chimney features a flue that is completely flush with its crown.

For a given fireplace opening and flue size in creasing the chimney height in creases the amount of draft.