What Size Flue Pipe For Wood Stove

Should the size of the flue be reduced at the back of the stove or continue to use the 8 inch stove pipe and reduce the flue to 6 inch at the thimble that goes into the chimney any advice will be appreciated.

What size flue pipe for wood stove.

6 7 and 8 inch diameter flue pipes must be at least 24 gauge in thickness. The way wood stoves and fireplaces work a correct match on fitting the flue size to the appliance is a must. But keep in mind that most likely you need to obtain a building permit and inspections for installing any new heater anywhere don t view that as a stumbling block but. However increasing the flue to a size larger than the stove s collar or flue flange is.

Flue pipe joints should overlap 30 mm 1 1 4 in each joint in the assembly must be fastened with at least three screws. Imperial 24 in l x 8 in dia black steel stove pipe. If the stove is defra exempt and has a 125mm outlet then a 125mm diameter flue may be used. Per nfpa 211 the industry standard for residential style wood stoves.

That s worth remembering because many non defra exempt stoves come with a 125mm flue outlet which then requires upsizing to 150mm. The original flue size was 8 inch. Imperial 6 in x 6 in 90 degree black steel stove pipe elbow. 12 4 4 1 the cross sectional area of the flue shall not be less than the cross sectional area of the appliance flue collar unless specified by the appliance manufacturer.

For example a single wall stove pipe requires 18 inches of clearance from ceilings or walls. In most cases a step up is also fine. A 6 inch stove requires a 6 inch flue. Venting a wood stove.

For pricing and availability. Once these clearances are met you must convert your stove pipe to class a chimney pipe for proper venting of your stove. Double wall stove pipe on the other hand requires only 8 inches of clearance from the ceiling and 6 inches from a wall. My vermont castings wood stove has a 8 inch flue size.

Up to 20kw burning smokeless fuel minimum 125mm diameter. It s not just stove pipe size you need to consider but proper fire rating of the flue or chimney materials clearances from combustibles cleanout access and code. Use black painted flue pipes. For pricing and availability.

Will it operate properly on the 6 inch flue. Galvanized flue pipes must not be used because the coatings vaporize at high temperatures and release dangerous gases. Supervent 24 in l x 6 in dia black insulated steel stove pipe. The building regulations require that the minimum flue size for stoves are as follows.

That said if the stove you have chosen is defra exempt and has a 125mm outlet then a 125mm diameter flue may be used.