Typical Chimney Flue Sizes

This article series provides information about masonry fireplaces.

Typical chimney flue sizes.

200 mm is required. Superior manufactures flues with holes contoured flue rings and flue. 100 mm unless no flue liner is used in which case a nominal 8 in. Quality chimney liner material that meets astm and excels in freeze thaw environments.

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 way wood stoves and fireplaces work a correct match on fitting the flue size to the appliance is a must. The inner diameter is the only measurement you need when capping a metal chimney liner. Air flow and velocity due to natural draft air flow volume and velocity due to stack or flue effect caused by.

As a general rule the diameter of the chimney should match the flue collar on your wood stove. Single flue chimneys with flexible metal liners. Just measure the inside diameter of your flue and search for a cap with that diameter. Socket type joints and self aligning joints are available in round flue liners.

In comparison a 12 inch chimney size provides a cross section of 113 inches through which to vent smoke. Fireplace flue size specifications relation of fireplace size to flue opening dimensions table of required chimney flue size and flue dimensions for masonry fireplaces. As i said standard flues were designed to fit with standard brick. 150 mm of either floor components ceiling components or rafters.

Btu input maximum ratings height dimensions other factors. A standard 12 x12 flue was what we now call a 13 x13 flue. 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. Combustion boiler house topics fuels like oil gas coal wood chimneys safety valves tanks combustion efficiency.

Heating heating systems capacity and design of boilers pipelines heat exchangers expansion systems and more. Dimensions for square rectangular and round clay flue liner. However generally speaking a rectangular chimney flue size should be at least one eight of the fireplace s opening. A modular 12 x12 flue is what we now just call a 12 x12 flue.

Flues should also mirror the size of a chimney. 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. If a chimney s diameter is six inches then the flue should also measure six. Tables of metal masonry chimney flue vent sizes vs.

If the flue is circular then it should be at least one tenth the size of the fireplace opening. Once you have. Venting a wood stove. Chimney caps that slip into the flue finding a chimney cap for this type of flue is also very simple.