Did my install of a new Harman XXV and have a few questions about sealing/caulking the vent piping.
Fired up the stove with nothing caulked as of yet. Noticed some obvious smoke leaks around some of the joints and odor of smoke as well. I plan on using the high temp silicone for most of the joints near the stove and possibly high temp tape further from the stove. I am considering on just the main vent pipe joints using O-Ring clamps with some kind of gasket material, possibly strips of silicone rubber that can take the heat or maybe aluminum foil folded to several layers that could compress into the joint. I did try the aluminum foil idea on one of the joints and appearance wise it doesn't look too bad, the clamp screw is behind the pipe out of sight, but not sure how effective it may be as a seal. This would allow for fairly easy disassembly to clean the the piping if needed. Any thoughts on the O-Ring clamp idea on the main joints?
Open to suggestions on best way to apply silicone sealer. Is it generally adequate to apply externally to the joints or is there any reason to glop up the fitting internally?
A lot of the pics on this forum show use of a red high temp silicone for joints. Local store has some high temp in black. Any difference in using red versus black? I'm planning on painting the piping black, so thinking black silicone may be easier to blend/hide.
Fired up the stove with nothing caulked as of yet. Noticed some obvious smoke leaks around some of the joints and odor of smoke as well. I plan on using the high temp silicone for most of the joints near the stove and possibly high temp tape further from the stove. I am considering on just the main vent pipe joints using O-Ring clamps with some kind of gasket material, possibly strips of silicone rubber that can take the heat or maybe aluminum foil folded to several layers that could compress into the joint. I did try the aluminum foil idea on one of the joints and appearance wise it doesn't look too bad, the clamp screw is behind the pipe out of sight, but not sure how effective it may be as a seal. This would allow for fairly easy disassembly to clean the the piping if needed. Any thoughts on the O-Ring clamp idea on the main joints?
Open to suggestions on best way to apply silicone sealer. Is it generally adequate to apply externally to the joints or is there any reason to glop up the fitting internally?
A lot of the pics on this forum show use of a red high temp silicone for joints. Local store has some high temp in black. Any difference in using red versus black? I'm planning on painting the piping black, so thinking black silicone may be easier to blend/hide.