chimney replacement questions rockwool.

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jack_90125

jack_90125

Member
Jan 9, 2011
48
NE Iowa
have an 8 inch stovepipe to double wall stainless. got a quote to replace and one guys says to use triplewall all the way.
other guys says to use rockwool double pipe from ceiling to flue and stovepipe ok from stove to ceiling connection. and menards sells it ,says triple wall will not fit.
this is all open and 1 says permit required and the other did not mention a permit but since they are a company I assume it will be there anyway.
one wants 1200 just for the labor plus materials and the other one imagine is about 2500 give or take.
so who do you select? is double wall good enough?
one mention if there is a fire he wants insurance to cover it.
no real knowledge here cept I throw the wood in and clean as needed.
should I just keep looking tho not many around here do that kinda work.
any specifics I should inquire of?
thanks for any help.
 
I would use the one that is an actual brick and mortar hearth shop with an A+ BBB rating, NFI Certified technicians who does not use subconractors.
 
it would be nice tho none around. even the local woodstove/fireplace store sub contracts it out. no one certified that advertises for 50 miles around.
so its nice that you point out but not real useful here.
 
Drats, thats gonna cause me to put on my thinking cap.
In regards to the permit, since you have conflicting info, I would call the town and see what they say.
Not quite understanding your description, here's what our shop does:
Either singlewall or doublewall stove pipe connector from the stove to the class A chimney. From just inside the wall/ceiling we start with triplewall class A chimney and continue that to the chimney cap.

No idea what a rockwool chimney is. This may be a great time for some photos.
 
In most areas a permit is required, so I would check with your local building department. Don't assume the installer is taking it out. If you don't have one and have a fire your insurance company may not pay off. You need to follow the installation instructions for your particular stove for the clearances and type of pipe to the ceiling. It could require single wall, double wall interior (like DVL) or single wall with a pipe shield. Pipe from the ceiling on up needs to be Class A which can be single or double wall or triple wall depending on the brand.
 
well went with the menards pipe as it is supervent made by seljirk which is suuposedly highly rated. and was 1/2 the price of other places.now just to decide who installs.
oh fun
 
As far as the permit goes, don't assume a contractor is getting a permit. Also don't assume that a permit or inspection means the installation is safe and proper. In some areas, the permit process is nothing more than a tax on contractors and homeowners, and a reason to employ civil servants.
 
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