Just had my Harman Advance pellet stove installed by a professional using excell vent pipes. I have a 3" to 4" tee connection adapter from the stove to my verticle pipe. I have a four foot verticle pipe connected to a 16" slider pipe off my tee connector then into a 90 degree elbow then 3 feet horizontal to outside.
When the stove is started and the pellets start to burn I can see smoke coming from the 90 degree elbow, it starts to leak at the bottom of the 90. If i block that off with a towel it starts to leak at the top of the 90 and all the ribs on the bend of the 90. If i wrap a towel around it to stop the smoke from leaking it starts to come out the slider pipe connection. When I block that off no smoke comes out of the pipes.
The pipes have been taken apart numerous times and the seals checked, all looks good. But when I re-install everything and fire the stove up again the pipes start to leak.
Seems that the smoke is getting between the inner and outer walls in the vent pipes. Only place i can see this happening is at the tee connection somewhere and some of the smoke is being pushed between the inner and outer pipe. Does anyone know how the smoke may be getting between the pipes or have had similar problems?
I am a neewbi when it comes to pellet stoves!
Forgot to mention my pipes are black, or else I would have tried the foil tape on the joints
When the stove is started and the pellets start to burn I can see smoke coming from the 90 degree elbow, it starts to leak at the bottom of the 90. If i block that off with a towel it starts to leak at the top of the 90 and all the ribs on the bend of the 90. If i wrap a towel around it to stop the smoke from leaking it starts to come out the slider pipe connection. When I block that off no smoke comes out of the pipes.
The pipes have been taken apart numerous times and the seals checked, all looks good. But when I re-install everything and fire the stove up again the pipes start to leak.
Seems that the smoke is getting between the inner and outer walls in the vent pipes. Only place i can see this happening is at the tee connection somewhere and some of the smoke is being pushed between the inner and outer pipe. Does anyone know how the smoke may be getting between the pipes or have had similar problems?
I am a neewbi when it comes to pellet stoves!
Forgot to mention my pipes are black, or else I would have tried the foil tape on the joints