Insulating around Big Maxx heater

[jevoy]

Almost ready for blown in insulation in my garage. I have a Big Maxx heater(already inspected). I have a 4" vertical venting system. I put a 6" pipe around my 4" to act as a barrier to keep my 1" air space for combustibles. I insulated up to the 6" pjpe with the green Roxul insulation(fire retardent). I cut my vapour barrier back from the b vent pipe 1". I plan on using the blown in for the rest of the insulation in my ceiling. Anybody have any issues with this method?

Thanks.

 

[Steevo]

Mine is done just like you describe, but I also capped the top of the outer barrier pipe to keep blown insulation from going down in there and filling it up.

It worked out well, and there are no issues.

 

[jevoy]

STEEVO. Did u use a roxul blown in insuulation? Looks green.

 

[ForceFed70]

Looks like cellulose to me.

Jevoy: What you describe is common practice and tends to work well. Just make sure you take steps to keep it centered.

 

[jevoy]

I bent 1" tabs on the 6" sleeve top and bottom to keep the pipe centered.

 

[jevoy]

I agree that the pic was cellulose but it looked green to me. Mine is pink. Im sure Roxul has a blown in type as well.

 

[Steevo]

Mine is cellulose.

 

[ForceFed70]

I bent 1" tabs on the 6" sleeve top and bottom to keep the pipe centered.

Perfect. Also the common way to do it.

 

[jevoy]

Steevo. What was the make of your cellulose?

 

[Steevo]

Steevo. What was the make of your cellulose?

I don't have a clue.
I hired it done through a local building materials place that I had used to do the fiberglass bats in my walls.

I just told them I wanted R60 in the ceiling, and they calculated that would take 18" of what they used, so that is what I got.