Wood Stove Flue Pipe Size

A 6 inch stove requires a 6 inch flue.

Wood stove flue pipe size.

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. The original flue size was 8 inch. Beginners often assume that the flue system is acting like an exhaust pipe on a car and the stove pushes smoke up through the chimney. A fire inside will tend to smolder and the air control settings will have little impact on the burn rate.

The flue will be 6 black stove pipe. 8 single wall or double wall stove pipe. Flue pipe joints should overlap 30 mm 1 1 4 in each joint in the assembly must be fastened with at least three screws. Will it operate properly on the 6 inch flue.

I originally was going to wrap it in a high temp batting with a stainless wire wrap to hold it in place. The size of vent collars varies by brand. Galvanized flue pipes must not be used because the coatings vaporize at high temperatures and release dangerous gases. Use black painted flue pipes.

Stove pipe is used from the top of the woodstove or freestanding fireplace to the bottom of the ceiling or wall where it will connect to class a chimney pipe or a masonry chimney. Otherwise the remainder will be 1 4 inch thick 5 square tube. In most cases a step up is also fine. This section is usually 3 to 4 inches in height with a tapered end that fits into the stove collar.

The other end is smooth and mates with the first section of stove pipe. A wood stove without a flue system attached will not function properly. As a general rule the diameter of the chimney should match the flue collar on your wood stove. For example if you purchase a zero clearance wood burning fireplace with an 8 flue and want to use the simpson duravent duratech chimney pipe you would need to use the duravent dvl 6 inch double wall stovepipe to stove flue adaptor.

In our experience most 3 stoves will not function reliably well with a wall exit even if the pipe size matches the stove. The smallest stove we ve seen that drafts reliably well with a wall exit is our dwarf 3kw standard which uses a 4 flue system. My vermont castings wood stove has a 8 inch flue size. Venting a wood stove.

The way wood stoves and fireplaces work a correct match on fitting the flue size to the appliance is a must. 6 7 and 8 inch diameter flue pipes must be at least 24 gauge in thickness.