Gas Fireplace Flue Size

Stoves fireplaces central heaters.

Gas fireplace flue size.

A 6 inch stove requires a 6 inch flue. In most cases you can also step up a size or two for instance a 6 stove could vent into an 8 insulated chimney. 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.

A 6 stove should use a 6 chimney or a 7 1 2 x 7 1 2 flue tile. How to determine proper flue size. The size and input btuh of each of the appliances being vented the size of the flue vent connector on each of those appliances this will be the bare minimum and is typically the size of the vertical flue vent connector between the appliance. The size of your flue vent connector or flue pipe needed depends on several variables including.

As a general rule of thumb the area of a. Flue size common venting uses. 8 1 2 x 8 1 2. Venting a wood stove.

8 1 2 x 13. Outside diameter inches inside area square inches 7 1 2 x 7 1 2. This article series provides information about masonry fireplaces. A flue that is too small won t allow the fireplace gases to exhaust properly and a flue that is too large will be cool down too quickly causing condensation and creosote buildup within 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. In most cases a step up is also fine.