Hiya, Erinmarie's husband here.
The Flue is terra cotta. It has brick masonry around it. It appears both flues (one for the basement Oil Water Boiler, one for the main floor living room are 6" terra cotta all the way down. The oil furnace has a flexible lining that was installed in 2002 (we know because we have the reciept from the previous owners).
As for the over all age, I don't know. But the house appears to have had a coal octopus at one point (from the duct work and coal room in the basement). As near as I can tell, the chimney is as old as the main building (from the setting, the floor jousts acnhored in / with the chimney are higher than therest of the house). There is some contorversy as to the exact age though. We have a field stone basement, but depending on the document, say 100 years old.
But the terra cotta we can see from the stove entry point looks fine (and as Erin said, both sweeps agreed it was in good shape.
- There are clean outs in the basement, and the second sweep said that would pretty much eliminate the need for a full chimney sweep as the fly ash could settle in the basement, clean that out, clean out the horizontal part of the stove pipe, and we'd be good. Is this sound advice?
- Is it possible to bridge the bare area bewteen the stovepipe entrance and the stainless lineing without lining the whole chimney?
- Now, if there isn't a liner with a T, how dow the stove pipe connect to the chimney? Doesn't it need to be air tight? (The hole in the chimney is 8", and is about very roughly 18" from the front of the mansonry to the flue. The Hole in the Flue is also appears to be 8".)