By Robert from Lancaster, PA on February 17, 2014
I want to use this to connect to the terracotta liner in the chimney. I know I have to cut the plywood to make a two inch clearance. I want the stove pipe to be on the right side of this. The hole is eight inches so the pipe should fit into the flue. Can the clean out be installed so it is horizontal?
By Collin C. - NFI Master Hearth Professional on February 18, 2014
Answer:Class A chimney is actually not designed to make an extended horizontal run. Usually, single or double walled stovepipe would run from the appliance to the thimble, with an adapter used to feed the stovepipe into the terra cotta or cement thimble. Class A is usually only used inside the home unless you have a wood burning fireplace that requires chimney from the flue collar on up. In those cases, the chimney must remain completely vertical, with a maximum of a 30 degree offset.
By jay from Penn Yan ny on January 5, 2012
What is the correct support bracket to use with this Tee?
By Tyler M. - Fireplace Specialist on January 5, 2012
By Doug from Bedford, PA on January 7, 2015
We have an indoor wood furnace. Can we use a Dura-Tech stainless steel chimney tee on the inside of a building?
By eFireplaceStore on January 8, 2015
Answer:While the part is intended for an outdoor installation, there is not a reason why you cannot do this. An anchor plate would need to be attached to the unit to allow connection of the tee. Because Class A chimney systems are usually designed to begin at the ceiling level, you will need to custom fabricate a trim collar to go around the chimney at the ceiling. A transition component between stove pipe and chimney is usually used.
By RCM from Pittsburgh, PA on September 29, 2014
I noticed your answer to another question stating that class A should not be used in a horizontal run. I am in the midst of ordering a chimney system for a surdiac coal stove. The first two foot, maybe thirty inches max through the thimble will be on the vertical from the stove pipe to the chimney tee. Will this pose a problem?
By eFireplaceStore on September 30, 2014
Answer:Please allow me to clarify. It is not so much of an issue to use Class A on a horizontal run, but it should not terminate or be used in excessive lengths in this type of installation. The general rule is that the horizontal run should not exceed more than 50% of the overall vertical chimney run. It is always best to keep horizontal runs as short as possible. It is usually the case to use just enough Class A to run from the tee to the outside wall, then through the wall, then far enough into the room to maintain proper clearance for the stovepipe. This would be 18 inches for single wall pipe and 6 inches for double wall stovepipe.