Chimney Insulation

lobsterman · Post by **lobsterman** » Sun. Feb. 13, 2011 4:40 pm

I have stove pipe entering a standard chimney flue. It has handmade (by me) metal plates that sit on top of old the flue casing and slide together against the pipe, not a tight fit but not so bad either. I am thinking of putting some insulation up there around the pipe. I know some of you have done this. What type do you use? Thanks.

mason coal burner · Post by **mason coal burner** » Sun. Feb. 13, 2011 4:59 pm

i used regular fiberglass .

lobsterman · Post by **lobsterman** » Sun. Feb. 13, 2011 5:15 pm

Do you know what temp it is rated for? Of course, normal operation is a cool pipe. But there may be the occasional hotter start up fire. Thanks.

mason coal burner · Post by **mason coal burner** » Sun. Feb. 13, 2011 5:24 pm

lite a match to it . it won't burn . I have some stuffed against the side of my stove at the outlet pipe to complete the box around my hitzer . it gets glowing hot sometimes no problems .

lobsterman · Post by **lobsterman** » Sun. Feb. 13, 2011 5:30 pm

Perfect. Thanks.

Vangellis · Post by **Vangellis** » Sun. Feb. 13, 2011 5:32 pm

When I insert my 6" stove pipe in my 8" flue inlet I fill in the gap around the whole pipe with regular fiberglass
insulation. Been doing this for 7 seasons now with no problems. It was suggested by a lady at the local stove shop.

Kevin

oliver power · Post by **oliver power** » Sun. Feb. 13, 2011 5:58 pm

I too have used fiberglass insulation. If no room for fiberglass, use high heat silicone caulking.

lobsterman · Post by **lobsterman** » Sun. Feb. 13, 2011 6:06 pm

Vangellis wrote:When I insert my 6" stove pipe in my 8" flue inlet I fill in the gap around the whole pipe with regular fiberglass
insulation. Been doing this for 7 seasons now with no problems. It was suggested by a lady at the local stove shop.

Kevin

Exactly what I want to do. Thanks.

I'm On Fire · Post by **I'm On Fire** » Sun. Feb. 13, 2011 7:05 pm

I stuffed some R38 around my chimney liner and throat. I pulled the backing off of it though. Been running it that way for several seasons starting with my over-fired wood stove.

mason coal burner · Post by **mason coal burner** » Sun. Feb. 13, 2011 7:24 pm

don't leave the paper on . that will burn .