Your expert opinion is invited:
My neighbour is asking if he can put fiberglass around newly-installed
insulated chimney as it penetrates the ceiling (attic) insulation.
The manufacturer specifies there be kept a 2" clearance from combustibles.
Specs: 7" (I.D.) stainless steel insulated chimney for a wood / oil furnace
(in basement).
Maker: Security Chimneys International Ltd., Laval, Quebec
Pipe sections labelled "Project Nova-Temp HT6000+5"@10"chem"
Please comment,
Thanks, Jack.
JerryD(upstateNY) - 25 Sep 2005 10:53 GMT
A metal ring around the pipe would be a much safer way of closing the space
between the pipe and the ceiling.
They sell them or you could make one yourself.
All you need is a piece round of sheetmetal 16" or so in diameter with a
hole in it, big enough for the pipe to go through.

Signature
JerryD(upstateNY)
My neighbour is asking if he can put fiberglass around newly-installed
insulated chimney as it penetrates the ceiling (attic) insulation.
The manufacturer specifies there be kept a 2" clearance from combustibles.
Specs: 7" (I.D.) stainless steel insulated chimney for a wood / oil furnace
(in basement).
Maker: Security Chimneys International Ltd., Laval, Quebec
Pipe sections labelled "Project Nova-Temp HT6000+5"@10"chem"
Please comment,
Thanks, Jack.
BP - 25 Sep 2005 11:33 GMT
They make a special insulation for firestopping. I've always called them
"fire batts", I think they are nade of mineral wool. The brand I use is
Thermafiber. Don't use fiberglass, it is not a good (or acceptable) fire
stop.
> Your expert opinion is invited:
>
[quoted text clipped - 12 lines]
>
> Thanks, Jack.
Jeff - 25 Sep 2005 19:35 GMT
Yes.. rock wool, mineral wool will work fine. I use it to close all gaps in
utility chase between floors. This stuff is itch city, wear long selves for
skin protection and a good respirator.
Jeff
> They make a special insulation for firestopping. I've always called them
> "fire batts", I think they are nade of mineral wool. The brand I use is
[quoted text clipped - 18 lines]
>>
>> Thanks, Jack.
Bill - 25 Sep 2005 14:49 GMT
I installed an "attic insulation shield". See following links...
http://www.hansenwholesale.com/fireplaces/stovepipe/chimney.html
http://airmate.com/pdfs/install/platinum/A15120%20Sheet%20S2.pdf
"Ralph" wrote in message
> Your expert opinion is invited:
>
[quoted text clipped - 12 lines]
>
> Thanks, Jack.
Ralph - 26 Sep 2005 04:10 GMT
Thanks very much for the useful comments.
- Jack