Woodstove insulation??????

[farmboss45]

Three years ago I bought a wood burning insert for my fireplace and am using it as my primary heat source in the winter. It works great, but I am wondering if I can make it more efficient. There is about a foot of open space behind the stove, as well as open space on either side of the 6 inch S.S. liner going through the flue. Is there a material I can fill these gaps and spaces with? What are some of you guys doing, if anything???? Maybe I am putting too much thought into this, but seems like a lot of heat is being lost up the chimney.

 

[cowroy]

Ceramic wool installation is what you need. It won't catch fire. Expensive, but works great. I use it for the same purpose you intend to.

 

[timbrjackrussel]

Kaowool
Thermal Ceramics Kaowool
or
Roxul
http://www.roxul.com/products/residential/roxul+comfortbatt

 

[Mad Professor]

Is the liner capped at the top of the chimney and the cap sealed at the chimney? Or is the SS flue just dumping into the existing flue/chimney?

 

[Deleted member 116684]

is the liner insulated? do you know how to instal a block off plate?

 

[7sleeper]

No offense but are you sure that you know what you are doing?! As far as I know inserts are designed to have air circulate around it to bring the heat INTO!!! the room. This is done either active by a fan or passiv through convection(hot air goes up cool air follows). I would seriously check back on the manufacturer to be sure what was mounted in your fireplace!!!

7

 

[farmboss45]

Is the liner capped at the top of the chimney and the cap sealed at the chimney? Or is the SS flue just dumping into the existing flue/chimney?

The liner is run the full heighth of the chimney and capped at the top. I cut the flue door out to run the liner as was specified by the manufacture, I am thinking that a lot of the radiant heat off the stove is going in to the dead open space up the chimmney and behind it.

 

[farmboss45]

No offense but are you sure that you know what you are doing?! As far as I know inserts are designed to have air circulate around it to bring the heat INTO!!! the room. This is done either active by a fan or passiv through convection(hot air goes up cool air follows). I would seriously check back on the manufacturer to be sure what was mounted in your fireplace!!!

7

I have a Napoleon wood burning insert. It has dual blowers on it that bring in room air and circulate it back through the ducts in the stove, back out into the room. I am wondeing if I am losing a lot of radiant heat with the dead space behind the stove and up the chimney

 

[farmboss45]

is the liner insulated? do you know how to instal a block off plate?

No, it is not insulated, just a ss flex liner inside my ceramic lined chimney. I think I need to install a block off plate, is there a kit for one or do I just need to fab one?