Purchasing a Wood insert with an existing 9" SS liner . . help

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johnmot

New Member
Nov 23, 2010
2
New York
Hello,

I am looking to purchase a wood insert and in preparation of a DIY install (I have a lot patience) i looked up into the fireplace there is an existing 9" SS liner all the way to the top cap with a damper mounted on top. It looks brand new, the previous home owners must have had it intalled recently. it is packed with insualtion all the way around it. The bottom of the liner sits fairly high into the firepace (about 5 feet ) so it will be impossible to reach from the bottom and its sealed in place with some sort of cement/chaulk at the top, so removing it seems like a no go either. What options do I have to connect a 6" liner from the top of the insert to the 9" liner, considering I cant remove and get to it to add a coupler reducer?

Is removing it completly my only option and install a 6"? I would hate to see it replaced since it is clean and solid. Also, the throat is only 5" wide, i need to grind/sawzall the old "thick" metal damper to make room or squeeze the 6", but I would rather cut. It seems like everything is working against me.

pic attached

Thanks

jm
 

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It looks like the previous owner relined the fireplace with the intention of using it as an open fireplace, hence the liner ending at the smoke chamber and being a 9 inch liner. It's a pretty poor job, too IMO. It's a pretty big liner for most modern inserts but it may be possible to connect a stub to it with some sort of increaser. I don't recall seeing the part off the top of my head though.
 
I'm no expert by any means but I believe you have some draft issues going from a 6" to 9" liner if you make a connection. I hope you get some feedback from the regulars here, I'm curious on how your issue should be handled a friend of mine has a similar issue and is looking at installing an insert.
 
This may be a stupid question. Can you just run a 6" liner inside of the 9" liner? Theoretically, it could be incredibly efficient. Also could be really easy to run down the flue.
 
Sen. John Blutarsky said:
This may be a stupid question. Can you just run a 6" liner inside of the 9" liner? Theoretically, it could be incredibly efficient. Also could be really easy to run down the flue.
Click to expand...
i was thinking the same thing. i would just run a new one inside it. you probably and insulate the liner as well and slide it down. or is the 9 inch one insulated already?
 
ecocavalier02 said:
Sen. John Blutarsky said:
This may be a stupid question. Can you just run a 6" liner inside of the 9" liner? Theoretically, it could be incredibly efficient. Also could be really easy to run down the flue.
Click to expand...
i was thinking the same thing. i would just run a new one inside it. you probably could insulate the liner as well and slide it down. or is the 9 inch one insulated already?
Click to expand...
 
Thanks for the feedback.

Great Idea. Thats what I am going to do.

I will run the 6" straight through the 9". The other suggestion I got was to run the 6" about 2 feet into the 9" then add a block-off plate near the throat to prevent smoke from entering the house. It would be like a direct connect install.

Making it a 6" run from stove to top cap is much better. I just need to find out if this is "in code", if I need insulation around the 6" and how I will connect it at the top. I will post my findings and final project pics for future reference.

Thanks

jm
 
Ah, I got it. I thought you were trying to avoid running a liner inside the 9" for cost reasons.

Yes, sliding a full length 6" down there would be the best way to go. Do check to see if that 9" is insulated. (The insulation at the bottom doesn't necessarily mean it is. Make sure it is fully wrapped.) If it is insulated you don't have to insulate the 6, though you should have enough room to easily.

Direct Connect installations are the root of all evil. EVIL!!
 
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