Insert chimney question

timchuck said:

The outlet on the stove is 8" do I need an 8" liner or can I go with a 6".

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AFAIK code does not permit 6 inch. The manual shows the flue just slid down into the opening and connected with an L bracket.

timchuck said:

I have a Appalacian 4N1 XL insert in masonary chimney with no liner the chimney is clean and in very good shape no problems. Been doing some research and I realize I need to get a liner installed. Rancher with 15 foot exterior chimney.
The outlet on the stove is 8" do I need an 8" liner or can I go with a 6". I'm going to have a devil of a time getting through the throat of the chimney and the 6" would save some difficulty.
How does the liner attach to the stove I have no flange on the stove just a 8" hole?
Who is the best supplier for my kit (liner and insulation) that will support the install and give the best price?
How soon does this need to be done, can I get by to spring or I need to do this asap?

Thanks,

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timchuck", "masonary chimney with no liner " ? No liner, as in just brick, no clay tile. If so, don't burn it without an insulated SS liner. If the stove has an 8 in. exhaust you probably need an 8" flue or equivilant. Is the masonry flue rectangular, if so, you could get an oval SS liner that is equal to the 8 in collar square inches. My old smoke dragon (Buck 26000) has an 8 in exhaust and I lined with 7 in and it is fine. The 15 foot exterior chimney is probably against you as height and being cooled by the exterior will produce less draft than an interior design and a taller chimney. It sounds like an older stove like mine. Many of them had rectangular openings and the manufacturer sold rectangular to round boot adapters. If the hole is round the collar is probably missing. Maybe someone else on the forum will recognize the insert and know where you can get a replacement part. Some places like http://www.woodlanddirect.com/ have custom shops that can make you a collar. Lots of places sell SS liners and I don't know who installs in your area. Again, hopefully someone on the forum will.

Some appliance adapters have legs on them so when installed you can fold back the legs which will hold the connector in, what is the width of your stove outlet.

timchuck said:

It is a nearly new stove with a round 8" outlet. Yes the chimney has a clay liner, the chimney has hardly been used very good condition.
Yes I saw on the manual to connect a pipe you use an "L" bracket but I thought that was with a freestanding install, this is an insert.
I believe there is some type of boot that fits the round opening on the stove then to the pipe? Will a 7" pipe work for my install? The oval shape would really help getting the liner through the damper.
Any recommendations on a supplier with a good price and support to get me through the self install?

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With SS liner products you can get a SS liner to appliance connector that has the L brackets ("Some appliance adapters have legs on them so when installed you can fold back the legs which will hold the connector in" TheHeatElement) That should work fine. The code does not allow reducing the size of the flue to less than the appliance outlet and its a gamble. As I said, in my previous post, I reduced from 8 in to 7 in on an old Buck 26000, 1982 and it worked fine. Back then though, they just put a big outlet in them that they knew would be enough or more draft than needed, rather than testing them to see what size outlet really would work. You may be able to get ovalized pipe that measures 7 in one way and bigger the other way and still get the equivalent of 8 in round sq in.

TIMCHUCK you can do a reducer. My appalachian is about 20 years old and the company told me I had to do 8 inch but they said their newer stoves could use a reducer. You can absolutely get an answer to your question by calling Appalachian stove Company. They will ask a few question about your stove and give you a complete answer. I have called for parts, etc since I have refurbished my stove and they are always great about it.

Back when I installed my RSF, they allowed 6" which is what I used but since then they only allow 7". If the manufacturer says it's OK, the inspector should be good with it.