I recently had the flue serving my wood stove relined with a stainless steel liner. Looking back, I'm not sure about a couple of things having to do with the way the snout and stove pipe were installed:
1. The snout was inserted through an existing metal thimble. The thimble is a bit beat up (probably not a big deal), and the mortar around it is cracked. None of this was repaired before installing the liner.
2. The space between the snout and the thimble was packed with rock wool insulation, but it was not mortared and the "T" wasn't fastened in place. This means that the snout moves back and forth a little when installing or removing the stove pipe. (The snout is fastened tightly to the "T"; it's just that the liner is flexible, so the lower end of the whole assembly sways a bit when you pull on the stove pipe.)
3. The snout slopes down into the chimney. This would seem to violate the rule that horizontal sections of stove pipe should slope down into the stove. But I asked at another stove shop and was told that this is the way it should be done, so that any rain and so forth that makes it to the inner lip of the snout runs back into the line rather than out into the stove pipe.
4. The male end of the 90 degree stovepipe was inserted into the snout, instead of crimping the end of the snout and inserting it into the female end of the stovepipe. (Of course, if you do that, perhaps it makes sense to slope the snout back into the chimney.)
Comments?
Thanks,
pixalu
1. The snout was inserted through an existing metal thimble. The thimble is a bit beat up (probably not a big deal), and the mortar around it is cracked. None of this was repaired before installing the liner.
2. The space between the snout and the thimble was packed with rock wool insulation, but it was not mortared and the "T" wasn't fastened in place. This means that the snout moves back and forth a little when installing or removing the stove pipe. (The snout is fastened tightly to the "T"; it's just that the liner is flexible, so the lower end of the whole assembly sways a bit when you pull on the stove pipe.)
3. The snout slopes down into the chimney. This would seem to violate the rule that horizontal sections of stove pipe should slope down into the stove. But I asked at another stove shop and was told that this is the way it should be done, so that any rain and so forth that makes it to the inner lip of the snout runs back into the line rather than out into the stove pipe.
4. The male end of the 90 degree stovepipe was inserted into the snout, instead of crimping the end of the snout and inserting it into the female end of the stovepipe. (Of course, if you do that, perhaps it makes sense to slope the snout back into the chimney.)
Comments?
Thanks,
pixalu
