Liner question

  • Active since 1995, Hearth.com is THE place on the internet for free information and advice about wood stoves, pellet stoves and other energy saving equipment.

    We strive to provide opinions, articles, discussions and history related to Hearth Products and in a more general sense, energy issues.

    We promote the EFFICIENT, RESPONSIBLE, CLEAN and SAFE use of all fuels, whether renewable or fossil.
Status
Not open for further replies.

hockeypuck

Feeling the Heat
Sep 6, 2009
423
south central NH
I was inspecting the 20 foot chimney that I was going to install the pellet stove in and found some thing unexpected. There is an 8 inch round flue all the way down to the top of the fireplace where it breaks trough and converts to a stove pipe. The old flue (13 x 13 ) was filled and blocked off. Do you think I need to pull a liner or just covert from 3 down to the 6" pipe that comes out of the bottom of the fire box? Pulling the liner would be easy but saving 200 bucks means I get a ton of pellets.
 
I have attached a picture.. Concerned about the stove pipe rusting so probably should just pull the liner.. Block off will be easy enough.I know there were some water issues before, but have taken steps to remedy that.
 

Attachments

  • chimney pipe.jpg
    chimney pipe.jpg
    152.6 KB · Views: 128
i would toss a pellet liner right down the center unless there is something crazy going on up above, in which case i wouls tear the old stuff out and start over. do not vent into a 8 inch metal flue and expect the stove to run reliably on low setting or stay burning from a high to low fire swing.....you are going to have too much draft and if nothing else will be somewhat inefficient.
 
i would toss a pellet liner right down the center unless there is something crazy going on up above, in which case i wouls tear the old stuff out and start over. do not vent into a 8 inch metal flue and expect the stove to run reliably on low setting or stay burning from a high to low fire swing.....you are going to have too much draft and if nothing else will be somewhat inefficient.
Read the install manual of a stove I am eyeing and it said not to vent into anything larger than a 6" flue... ordered a 4" kit today. Thanks.
 
I don't mean to hijack the thread but..well I guess I do.....Do I have to insulate? I have a 4" liner going in a chimney thats along the exterior. It will be exposed to the cold, but if I seal it very well with a nice fat bead of high temp silicone for the top plate to sit on will I still need the insulate kit? Shouldn't that keep the majority of the cold out to prevent moisture? My buddy had his installed by a local hearth company and they said he will not need it. Its been going strong for 4 years now with no issues at all. Thoughts? I'd like to save any loot I can.
 
I don't mean to hijack the thread but..well I guess I do.....Do I have to insulate? I have a 4" liner going in a chimney thats along the exterior. It will be exposed to the cold, but if I seal it very well with a nice fat bead of high temp silicone for the top plate to sit on will I still need the insulate kit? Shouldn't that keep the majority of the cold out to prevent moisture? My buddy had his installed by a local hearth company and they said he will not need it. Its been going strong for 4 years now with no issues at all. Thoughts? I'd like to save any loot I can.
Mine is on the outside as well, but because I am burning dry pellets and the creosote will be minimal.. I am not going to insulate. I can always pop the top off and fill later if I find too much build up.. but I am sure there will be many opinions on this one.
 
Status
Not open for further replies.