I've been asked to estimate the cost to line a chimney for venting a Franklin style stove (8 inch outlet) in a tall, old victorian home in Columbus, OH. On a clear day you can just make out the top of the chimney, jutting out of a 12/12 pitch asphalt (thank god) roof. Typical of houses this old, there is only an 8x8 flue tile affixed to the crown, with an unlined "flue" below that measuring approx. 9x9 inches dropping about 30 feet earthward to the old fireplace, where the franklin stove will be installed.
I hate installing liners in close quarters like this, especially since there is an offset involved. I just know I'll be sorry if I try to wedge an 8 inch stainless liner in there, not to mention the difficulty of ensuring that adequate amounts of poured-in insulation (thermix, for example) gets where it's supposed to go.
Downsizing the flue to a 7 in, or 7.5 in diameter liner would likely give me enough room for liner and insulation, but downsizing goes against everything I've learned about lining chimneys. I dislike franklin stoves anyway, but this customer seems determined to pursue the matter.
So, if I get some responses to this post, I'll show them to my customer, hopefully discouraging her from pressing on with this installation- or, with enough reasoned ecouragment, from you folks, I'll gather my climbing gear and install a smaller diameter liner.
I hate installing liners in close quarters like this, especially since there is an offset involved. I just know I'll be sorry if I try to wedge an 8 inch stainless liner in there, not to mention the difficulty of ensuring that adequate amounts of poured-in insulation (thermix, for example) gets where it's supposed to go.
Downsizing the flue to a 7 in, or 7.5 in diameter liner would likely give me enough room for liner and insulation, but downsizing goes against everything I've learned about lining chimneys. I dislike franklin stoves anyway, but this customer seems determined to pursue the matter.
So, if I get some responses to this post, I'll show them to my customer, hopefully discouraging her from pressing on with this installation- or, with enough reasoned ecouragment, from you folks, I'll gather my climbing gear and install a smaller diameter liner.