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Chimney Pipe & Liners Finding the right type of vent pipe for your appliance is essential for
creating a safe heating system. Generally,
the kind of vent pipe you need depends on the type of fuel your appliance uses,
but the method of installation can also affect your piping requirements.
The following is a basic list of the kinds of vent pipe currently
available.
- Chimney
Pipe: Chimney pipe is
designed to vent appliances fueled by wood, oil, coal, and, in some cases,
gas. The most common variety is
Class A.
- Gas
Vent Pipe: Gas pipe is
used to vent appliances fueled by natural gas or propane. Type-B
and Direct Vent are both styles of gas piping.
- Stove
Pipe: Both wood stoves
and freestanding fireplaces require stove pipe to connect to chimney piping
or a masonry chimney.
- Pellet
& Corn Vent Pipe: Appliances
that use corn or wood pellets should be vented with pellet pipe.
- Chimney
Liners: Chimney liners
are used to reline damaged or unsafe masonry chimneys.
Many appliances also require you to use a liner when venting them
through a chimney.
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 Chimney Pipe - Class AClass A Chimney Pipe, also called All-Fuel pipe, is designed to vent appliances fueled by wood, oil, and coal, though some brands are also approved for use with gas-fueled devices. Chimney systems created with Class A pipe are almost always UL Listed, allowing them to be compatible with a greater variety of fireplaces, wood stoves, inserts, and furnaces than other kinds of vent pipe. |  |  |  | | | |  | 
 Gas Vent PipeThere are two types of vent pipe available for natural gas and propane-fueled appliances. Direct Vent chimney systems rely on external air for combustion and expel exhaust directly into the outside atmosphere. Type B pipe is designed for use with Category I gas fireplaces, stoves, and inserts. Your appliance�s instruction manual will specify which type of pipe you need. |  |  |  | | | |  | 
 Stove PipeStove pipe is available a variety of thicknesses, ranging from single-wall to triple-wall, with the triple-wall providing the best insulation and smallest clearance to combustibles. Most wood stoves and freestanding fireplaces can be connected to a chimney with any thickness of stove pipe, but it is strongly recommended that you use stove pipe and chimney pipe produced by the same manufacturer. |  |  |  | | | |  | 
 Pellet & Corn Vent PipePellet and Corn Vent Pipe, often just called pellet pipe, caters to the specific demands of appliances fueled by wood pellets and corn. Some brands of pellet pipe are also approved for use with other alternative fuels, but you should always check the manufacturer�s instructions. |  |  |  | | | |  | 
 Chimney LinersMetal chimney liners, usually made out of steel, can make a damaged or unsafe masonry chimney usable again. Many appliances also require you to use a chimney liner when venting them through a chimney. Even when a liner isn�t specifically required, you may want to use one because a lined chimney helps your appliance maintain a more efficient draft and hotter flue temperature. Liners are also easier to clean than traditional chimneys. |  |  |  | | | |  | 
 Chimney CapsDoes Your Home Have An Uncapped Chimney? If your answer is yes, you need a Chimney Top. Why? That's simple! Your chimney is a hole in your roof!
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