I have my insert (sitting in my living room) and am just about ready to buy a liner for my masonry chimney, but have one last (I hope) question about the liner kit I'm having trouble getting a solid answer on.
My brick chimney holds the terra cotta flues for both the oil burner and the fireplace. The distance between the two flues is only about 4". The wash/crown is tapered, high between the two and lower at the outer edges. The terra cotta on the fireplace side extends only about 1/2" above the mortar near the center of the chimney and about 1 -1/2" on the outer edge. I originally thought about getting a terra cotta top plate, but I don't think there is enough flue exposed for the cap to fit over and sit flat.
So, will a standard flat top plate sealed to the top of the terra cotta flue be secure enough to support a 6" diameter x 25' long liner? Building up the crown is an option, I suppose, but will screws hold the top plate in the mortar or does the hi temp sealer do most of that work? Any insight on options is appreciated.
The closer I think I am to installing my insert, the more information I find I need. Hopefully I will get everything in line and be ready before the cold weather comes.
My brick chimney holds the terra cotta flues for both the oil burner and the fireplace. The distance between the two flues is only about 4". The wash/crown is tapered, high between the two and lower at the outer edges. The terra cotta on the fireplace side extends only about 1/2" above the mortar near the center of the chimney and about 1 -1/2" on the outer edge. I originally thought about getting a terra cotta top plate, but I don't think there is enough flue exposed for the cap to fit over and sit flat.
So, will a standard flat top plate sealed to the top of the terra cotta flue be secure enough to support a 6" diameter x 25' long liner? Building up the crown is an option, I suppose, but will screws hold the top plate in the mortar or does the hi temp sealer do most of that work? Any insight on options is appreciated.
The closer I think I am to installing my insert, the more information I find I need. Hopefully I will get everything in line and be ready before the cold weather comes.