Is stove pipe measured by inside or outside diameter?

inside diameter

To select the proper stove pipe size take the inside diameter measurement from your flue outlet on the woodstove itself. Never decrease the size of your flue pipe due to dimensional restrictions.

What size is black stove pipe?

Black Stove Pipe to vent wood burning stove. Snaplock pipe snaps together at the seams and is crimped on one end. Comes in 4″, 5″, 6″ and 8″ diameters in 24″ and 36″ lengths. The pipe comes unsnapped so you can cut it to length as needed.

What is the difference between galvanized and black stove pipe?

Black steel pipe is uncoated and made without steam, and therefore, it is widely used for transporting gas like propane and natural gas to residential and commercial building. Galvanized pipe has zinc on the surface so the mineral will flack off as time goes by and block the pipe. This will lead to a burst.

How long can a stove pipe run horizontally?

The horizontal section of the uninsulated stove pipe should not be more than three-quarters as long as that section of the flue above the point at which the pipe and the flue connect.

What gauge should stove pipe be?

Single-wall stove pipe is used on standard wood stove installations. According to, it should be at least 24-gauge sheet metal or thicker — the lower the gauge, the thicker the metal. Typical code requires that single-wall stove pipe maintain at least an 18-inch clearance from any combustible material.

How long does wood burning stove pipe last?

A single wall stove pipe will need to be replaced every two or three years if a wood burning appliance is used every day.

Can black stove pipe be welded?

Our Single Wall Black Stove Pipe is manufactured from heavy duty 22 gauge cold rolled steel (the thickest in the industry!) and ensures a perfectly round pipe to pipe fit with smooth welded seams for easy installation.

Which is cheaper black pipe or galvanized?

In general, black steel pipes are cheaper than galvanized pipes. It is due to the zinc coating on the galvanized pipes and the manufacturing process. Galvanized fittings also cost more than the fittings used on black steel due to its demand for maintenance.

Can you use duct pipe for stovepipe?

You cannot use HVAC ducting for a wood fireplace or stove exhaust. The stove/fireplace exhaust parts are typically triple-wall and are totally different in terms of their construction and connection methods. HVAC ducting is simple single wall sheet metal with leaky joints that you cover with foil tape.

How high does a stove pipe have to be over the roof?

In essence, any chimney, stove pipe or other heating exhaust vent should be 3 feet (1 meter) above the roofline or 2 feet (61 centimeters) above any part of the building in a 10-foot (3-meter) radius.

Can stove pipe go straight up?

Does A Wood Stove Pipe Have To Go Straight Up? A wood stove pipe must be as short and straight as possible. At the least, 80% of it must be vertical. If it is so important, one or two 90˚ angles, at most, can be made part of the structure.

Does a wood stove pipe have to go straight up?

Can I use double wall stove pipe inside?

Double Wall Black Stove Pipes
Use Double Wall Black Stove Pipe from your stove exhaust to a thimble or ceiling transition box when you have less than 18 inch clearance to wall combustibles, and never inside a combustible wall or inside a chimney chase.

Does stove pipe have to be double wall?

Single-Wall stove pipe can be installed as long as you have a 18″ clearance to a wall, ceiling or floor. If your clearance to combustibles is less than 18″, you have to install double-wall stove pipe.

What is the difference between double wall and triple-wall stove pipe?

What’s the difference between DuraTech and DuraPlus chimney pipe? DuraPlus is a triple-wall chimney system with a layer of insulation between the innermost wall and the middle wall whereas DuraTech is a double-wall chimney system with a layer if insulation between the two metal walls.

What gauge metal is stove pipe?

What is the clearance for single wall stove pipe?

The NFPA calls for an 18″ clearance to combustible walls for single wall stove pipe. Double wall stovepipe is used when you don’t have 18″ or more clearance from combustibles. Most of the double wall stove pipe allows for 6″ clearance from wall combustibles and 8″ from ceiling combustibles.

Can you bury black pipe for natural gas?

Yes, black gas pipe can be direct buried. The main thing to keep in mind is that the burial depth must be at least 18 inches. The pipe should also be wrapped with an approved wrapping material to protect it from corrosion.

Can you mix galvanized and black pipe for gas?

There is no galvanic corrosion/reaction between galvanized and black pipe because they’re both made of “soft steel”, galvanized is simply coated with zinc.

What kind of pipe should I use on wood stove?

Class A chimney pipe is used for wood-burning fireplaces and stoves. It is also used when transitioning stove pipe through a wall or ceiling. It is often referred to as double-wall, triple-wall, all-fuel or insulated chimney pipe.

What is the 10 2 rule for chimney?

If the chimney is closer than 10 ft. from the peak of the roof, the chimney must be 2 ft. higher than the peak of the roof.

Is it better to vent wood stove through wall or ceiling?

You can use single wall pipe up to the ceiling, but you must use insulated pipe through the ceiling, attic and roof. 2. Wood stove pipe can be installed horizontally through the wall or vertically through the ceiling. You should try to keep your pipe as straight as possible, so the vertical method is recommended.

Does the crimped end of stove pipe go up or down?

Stove pipe should always be installed with the “male-end-down”. Installing the pipe male-end-down allows creosote drippings to go back down into your stove instead of running down your pipe onto the stove or floor.

Can a wood burning stove vent horizontally?

Same with gas stoves – venting can be routed in either direction – vertically or horizontally.

Does stove pipe need to be insulated?

There is never a requirement for insulating a chimney liner for a gas or oil burning appliance like there is for wood stoves. However, insulating a chimney liner for a gas appliance will help the draft to ensure that your appliances are venting properly.