What are the allowable clearances.
Zero clearance chimney pipe.
Black single wall stove pipe has a clearance to combustibles of 18 double wall black pipe has a clearance of 6 whereas class a chimney pipe is generally 2.
If used to vent a wood stove the chimney is likely to be too cool leading to a dangerous creosote build up a source of potentially fatal chimney fires.
It keeps the outer wall of the chimney cool while ensuring high flue gas temperatures for optimum draft performance.
Known as factory built zero clearance or pre fab fireplaces.
This anchor plate will secure chimney pipes with a six inch diameter.
Requires a steel pipe chimney added to the home during or after construction.
Below are the allowable clearances for a number of common situations.
Unless you are able to.
Black pipe used outside will run way cooler flue temperatures than class a chimney and will potentially build up creosote quite rapidly increasing the chance of a chimney fire.
Rock vent pellet chimney pipe is used to safely vent your pellet burning stove or b vent listed appliance.
Zero clearance fireplaces and vents are usually not rated for literally zero clearance from combustibles or greater fire clearance distances may be required by local or national fire.
Listed with a 1 clearance to combustibles by ulc ord c441.
Clearance is the distance that is considered to be safe between a heat producing appliance chimney chimney liner vent pipe vent connector or other hot surfaces and combustible materials.
Solids burn up as carbon which we call soot and can build upon itself to close down the.
This plate is used with all fuel chimney pipe masonry applications and zero clearance applications.
Fire safety clearance requirements between metal chimneys combustible materials minimum clearances from combustibles for manufactured metal chimneys for oil gas or other fuel fired appliances using metal chimneys table of clearances for listed flue vent connectors for gas fired heating appliances minimum distance from combustible materials questions answers.
Elbows are often needed in chimney systems for a variety of reasons.
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.
If your outside chimney is faced with the same siding material as your house you have a factory built fireplace.
Our pellet chimney pipe is fabricated with a unique gasket seal system which doesn t require sealant like many other brands on the market today.
Since the flue of a zero clearance fireplace is usually an 8 round pipe as you can see in the picture below that runs up the interior the wooden brick enclosures they will get filled up and closed down quicker than a masonry fireplace during use.
