A double wall stove pipe is used to blow off hot air through the pipe from the wood-burning stove. It becomes much hotter at the connection point with the stove. However, it gets much cooler near the thimble connection.
Why choose double wall stove pipes?
The first reason is that double wall stove pipes are substantially better in quality. Yes, they cost a bit more but they will last a lot longer than their counterparts. Double wall stove pipes also have better insulation, which helps to keep the flue gasses warmer.
Can a stove pipe be used in a combustible wall?
The stove pipe runs into the ceiling or wall, connecting with a masonry chimney. It can also connect to some sort of chimney liner kit. It is also capable of being used in a combustible wall so long as it connects to an insulated pipe. It is important to note one thing. A stove pipe cannot run into a combustible wall by itself.
What is a stove pipe and how does it work?
The stove pipe is pretty much what it is named for: a pipe that connects directly to a stove. It can connect to a select few other appliances, but you will generally see one of them attached to a stove of some sort. The stove pipe runs into the ceiling or wall, connecting with a masonry chimney.
Can I use a double wall stove for draft?
On a good EPA stove your flue temps aren't going to be very hot and it's heat that you probably want being used for creating draft. Double wall lasts no longer than single wall.
Should you use double wall stove pipe?
The benefit of having double-wall pipe is that it will last longer and your draft will improve. It is always recommended that you use double-wall pipe in a mobile home. The reason why you must use double-wall pipe for a clearance of 18" or under is because it is air insulated.
What is double wall pipe used for?
A double-wall pipe is an important safety tool when storing liquids, whether it's chemicals, wastewater, or even liquids used in the food and beverage industry. The vast majority of double-walled piping applications are for wastewater chemicals, contaminated groundwater, and chemical process safety.
Should I use double or triple-wall stove pipe?
According to building codes, there must be a 2-inch clearance around your double- or triple-wall chimney pipe. In mobile homes, you must use a triple-wall chimney pipe.
Where do you put double wall stove pipe?
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.
How hot does double wall stove pipe get?
These pipes only need a 2-inch clearance to combustibles because they remain cool on the outside, while their internal design allows them to withstand temperatures as high as 1,700 or 2,100 degrees Fahrenheit for a limited time.
Can you use single wall pipe for wood stove?
You need to look carefully at the wood stove manufacturer's requirements, but most wood stoves need a large draft to operate correctly and loss of heat through a single wall pipe causes too much loss of draft as well as creosote problems eventually leading to a chimney fire, if you can manage to keep your stove lit.
Can insulation touch double wall chimney pipe?
Fiberglass insulation can't and should not touch your stove's vent pipe. While fiberglass is not flammable, it can melt, causing fire risks.
What is the difference between stove pipe and chimney pipe?
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What type of stove pipe do I need?
According to CBMQ.com, 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.
Do you need insulated stove pipe?
Gas or oil burning appliances have a significantly lower flue temperature which do not have enough heat transfer through a brick chimney to cause nearby framing to combust. There is never a requirement for insulating a chimney liner for a gas or oil burning appliance like there is for wood stoves.
Why is pellet stove pipe double walled?
DVL's double-wall, air-insulated design reduces clearances to combustibles from 18 in. to 6 in., the closest clearance to a wall of any connector pipe. DVL improves stove performance by maintaining high flue gas temperatures for a strong, steady draft.
How does an EPA stove work?
With an EPA stove, the heat that comes off the pipe isn't a substantial amount. Unless the stove is wide open, there's not much heat coming off of it, there is enough to cool the flue though. When I clean a flue that has double wall, it's much cleaner, often very little build up. If it's not needed for clearance reasons, I wouldn't bother with it due to the expense. If you go with single wall, get the 22ga factory crimped pipe, it will last many,many years.
Is double wall insulation longer than single wall insulation?
Double wall lasts no longer than single wall. The purpose of the outer wall is simply a heat shield, whether you need to keep heat in to keep the flue warm, or to reduce clearances to combustibles. But once the flue burns or rots through, it's done.
How much clearance does a stove pipe need?
It is a double-layered stove pipe. It requires only 8” of clearance to the ceiling and 6” clearance to the wall. It is more durable to higher temperatures and also has an internal air-cooling system.
Is double wall stove pipe expensive?
A double wall stove pipe might be more costly but it has superior quality. In a double wall stove pipe, the pipe consists of two walls and an air cooling system internally.
What is stove pipe?
Stove pipe is uninsulated pipe used in the room where the stove or other appliance is located. Stove pipe is made in single- and double-wall versions. Chimney pipe also is made in two types, double wall and triple wall. Advertisement.
What is triple wall chimney pipe?
Chimney pipe is insulated metal pipe used to vent safely to the outside air the products of combustion produced by wood, coal or oil. It is not necessarily installed in a chimney; it can be freestanding.
How does a chimney pipe work?
The function of the insulated chimney pipe is to protect adjacent building structures from the high temperatures created by high-output appliances. To do this requires that the pipe remain cool on the outside by having an internal design that creates a fire-safe venting system. Manufacturers use different techniques to achieve this. Chimney pipe may have insulation packed in the gap (s) between the pipes, or it has a ceramic insulating blanket in conjunction with the gap (s). The goal is to minimize the outside diameter of the pipe and the allowable distance from combustibles. This can be 2 inches for double-wall pipe and 1 ½ inches for triple-wall pipe.
How far can a single wall stove pipe be installed?
How Used. Single-wall stove pipe can be installed from a stove to within 18 inches of any combustible material. Neither it nor double-wall uninsulated pipe can be used to penetrate ceilings, walls or roofs.
What is the temperature of a 103 UL pipe?
UL standard 103 requires pipe capable of safety operating with an internal temperature of 1,000 degrees Fahrenheit and withstanding a maximum temperature of 1,700 degrees Fahrenheit. The comparable numbers for the 103HT standard are 1,700 and 2,100 degrees.
Do you need a chimney listing for a stove?
The listing required for a particular stove may be specified by the manufacturer. Or your local building code may require a particular listing, either in general or for specific types of fuel or appliance. This can be a reason for using triple-wall pipe rather than double wall. You will need to install chimney pipe meeting the most restrictive listing.
How much clearance does a double wall stove need?
Double wall stove pipe, on the other hand, requires only 8 inches of clearance from the ceiling and 6 inches from a wall. Once these clearances are met, you must convert your stove pipe to Class A chimney pipe for proper venting of your stove.
How far does a chimney pipe need to be from a stove?
Depending on what kind of stove pipe you use, the Class A chimney pipe must come into the room six inches (for connecting to double-wall stove pipe) or 18 inches (for connecting to single-wall stove pipe). Most wood burning stoves are top-vent models, meaning the flue collar will be on top of the unit.
What is a B gas vent?
Type B gas pipe, also called "B-Vent" or "Natural Vent," is prefabricated, double-wall metal pipe used to vent gas appliances listed for use with Type B gas vent. Type B pipe is becoming less prevalent for venting hearth products, but many furnaces and water heaters still use it.
What is an anchor plate for a fireplace?
Anchor Pate/Flue Adaptor: The vast majority of fireplaces, stoves, and inserts need an anchor plate (usually for zero clearance and masonry fireplaces) or a flue adaptor (usually for stoves and direct vent fireplaces) to use a particular kind of chimney system.
Why do you need two inches of clearance for a chimney?
Class A chimney pipe requires only two inches of clearance to combustibles because it is made to handle the highest temperatures for exhaust. This is why you must convert from stove pipe to class A chimney pipe when venting your wood burning stove.
What is a Class A chimney cap?
Class A chimney pipes have their own specialized caps that fit right on top of the pipe at the point of termination above the roofline, commonly referred to as chimney caps . When terminating a Class A system, you must follow what is known as the "10-3-2" rule or the "10-foot, 2-foot" rule.
What is a tee in a chimney?
Tees are most commonly used as connectors between stove pipe and Class A chimney systems, as the pipe that exits the home needs to be turned 90-degrees to run vertically up to the roof for termination. All Class A chimney tees will need tee support as the base support point for the vertical pipe.
