Hi all,

Does anybody have links for lightweight fireproof insulation
(preferably either pellets or 'blanket' type) ?

I've got a 'walk in fireplace' and therefore a rather wide chimmney
that is sealed off with an aluminium plate (with a trapdoor in it)
about 8' up. Obviously a fair amount of heat vanishes up the chimmney
and I'd like to put something on top of the aluminium plate to
insulate it but since the steel flue for my woodburner passes through
the plate it would have to be fireproof and also lightweight as the
plate isn't that thick (1-2mm)

Any suggestions ?

Cheers,

John

John Anderton wrote:

Hi all,

Does anybody have links for lightweight fireproof insulation
(preferably either pellets or 'blanket' type) ?

I've got a 'walk in fireplace' and therefore a rather wide chimmney
that is sealed off with an aluminium plate (with a trapdoor in it)
about 8' up. Obviously a fair amount of heat vanishes up the chimmney
and I'd like to put something on top of the aluminium plate to
insulate it but since the steel flue for my woodburner passes through
the plate it would have to be fireproof and also lightweight as the
plate isn't that thick (1-2mm)

Any suggestions ?

Rockwool.

--
Cheers,

John.

/================================================== ===============\
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| John Rumm - john(at)internode(dot)co(dot)uk |
\================================================= ================/

On Sun, 05 Nov 2006 13:15:55 +0000, John Rumm
wrote:

John Anderton wrote:

Any suggestions ?

Rockwool.

Thanks, but isn't rockwool fairly heavy, or am I being misled by the
name ?

Cheers,

John

John Anderton wrote:
On Sun, 05 Nov 2006 13:15:55 +0000, John Rumm
wrote:

John Anderton wrote:

Any suggestions ?

Rockwool.

Thanks, but isn't rockwool fairly heavy, or am I being misled by the
name ?

Cheers,

John

It's slightly heavier than glasswool (fibreglass) given that it's made from
rocks rather than glass, but I can't see this being a problem.

Failing that, you can buy fireproof expanding foam, although it's insulating
properties are not as good as rockwool

On Sun, 05 Nov 2006 15:17:49 GMT, "Phil L"
wrote:

John Anderton wrote:
On Sun, 05 Nov 2006 13:15:55 +0000, John Rumm
wrote:

John Anderton wrote:

Any suggestions ?

Rockwool.

Thanks, but isn't rockwool fairly heavy, or am I being misled by the
name ?

Cheers,

John

It's slightly heavier than glasswool (fibreglass) given that it's made from
rocks rather than glass, but I can't see this being a problem.

Failing that, you can buy fireproof expanding foam, although it's insulating
properties are not as good as rockwool

Thanks, I'll look into that,

Cheers,

John

John Anderton wrote:
On Sun, 05 Nov 2006 13:15:55 +0000, John Rumm
wrote:


John Anderton wrote:

Any suggestions ?

Rockwool.


Thanks, but isn't rockwool fairly heavy, or am I being misled by the
name ?

Not in the quantities that you will be needing it. In fact you could
also use the fibreglass wool stuff if you prefer - they both have the
same fire resitance rating.


--
Cheers,

John.

/================================================== ===============\
| Internode Ltd - http://www.internode.co.uk |
|-----------------------------------------------------------------|
| John Rumm - john(at)internode(dot)co(dot)uk |
\================================================= ================/

"John Anderton" wrote in message
...
Hi all,

Does anybody have links for lightweight fireproof insulation
(preferably either pellets or 'blanket' type) ?

I've got a 'walk in fireplace' and therefore a rather wide chimmney
that is sealed off with an aluminium plate (with a trapdoor in it)
about 8' up. Obviously a fair amount of heat vanishes up the chimmney
and I'd like to put something on top of the aluminium plate to
insulate it but since the steel flue for my woodburner passes through
the plate it would have to be fireproof and also lightweight as the
plate isn't that thick (1-2mm)

Any suggestions ?

Rockwool.

We've just added insulation to our HWC with a rockwool blanket lined with
aluminium foil and I'm very impressed.

Mary