rock wool or vermiculite

Greetings all, I'm new on this forum, I am an Italian and living in Romania and I write with google traslator, I wanted to ask if as insulation material of the riser can be used rockwool, putting compress/fixed in exchange for vermiculite ?
Has anyone done this ??

If someone responds to write very simple to help google translator
Thank You

Ciao Adriano...Benvenuti a Permies...

Yes...there are several mineral wool insulation types that can withstand these and even higher temperatures. Many of the mineral wool types are used for insulating ceramic kilns that burn at even higher temperatures.

It will be hard to give good feedback without seeing a design first...

Buona fortuna,

j

Thanks a person answered me
Now I wanted to know if the rock wool can replace the vermiculite, because here in Romania does not find the vermiculite, instead I find the rock wool.
Thank you answer as you speak to a child this helps google translator.
Thank You

See the photos on the website made Ameriga Milkwood.net where we see that after two years the vermiculite has fallen by 10 cm

I do not know how to put a photo, I pressed "img" but asks me to http?

Rockwool has been used to insulate the outside of a firebrick riser. You need a bit more thickness of rockwool than vermiculite or perlite. Wrap it with wire or wire mesh or sheetmetal to keep it in place.

Do not use it around a metal riser. When (not if) the metal burns through, the rockwool will melt where it is exposed to flame.

Thanks Glen, I understood this:
1) rieser metal no rockwool but vermiculite
2) rieser with bricks I can use rockwool but I have to put a lot of
Confirm?
rock wool insert very much compact ?? or insert as I get from the store ?
Thank You

1) To be truthful, you can't use a metal inner heat riser of any kind. It will fail quickly in the temperatures it sees. Any insulation around it would need to be strong and solid to stand by itself.

2) Yes.

I have not used rockwool myself, so I do not know how tight to pack it.

So guys, i will explain to him in italian, that metal is doomed and that he can use rockwool.


Ciao Adriano.

E perfetamente possibile di usare della rockwool per lo "heatriser" e altre parte.

Ma e impossibile di usare metalo per l'interno della stuffa e heat riser. Metalo non funziona.

Vedi https://www.youtube.com/watch?v=7RyvsZD1_CU

Metalo brucia tuto in qualche setimane.

Io uso delle tubi di camina in argila refratario della Landini o schiedel.

Re: Rockwool.

Just adding this link for those tinkerers. This seems like an industrial product and I don't know where one would order such a thing, but see the rockwool columns here used for pipe insulation: http://deltainsulation.com/pipe . Might be an interesting addition to a design.

John, Schiedel in austria makes a product which is every rocket builder's dream.




http://www.jpcorry.com/productdetail/26/16/schiedel.aspx

Satamax Antone wrote:So guys, i will explain to him in italian, that metal is doomed and that he can use rockwool.


Ciao Adriano.

E perfetamente possibile di usare della rockwool per lo "heatriser" e altre parte.

Ma e impossibile di usare metalo per l'interno della stuffa e heat riser. Metalo non funziona.

Vedi https://www.youtube.com/watch?v=7RyvsZD1_CU

Metalo brucia tuto in qualche setimane.

Io uso delle tubi di camina in argila refratario della Landini o schiedel.

I saw the movie on you tube, but the tube Rieser metal it seemed up / not sufficiently large/big. How many millimeters had the tube at the start ??
Then comes another doubt better Rieser metal (roughly 5/6 mm) or is it better the Rieser refractory bricks ?

Ciao Adriano, outer riser metal acceptable, inner riser no metal just firebrick or fireclay. In the video the metal was full height inside when built. Dissolved 30 cm at bottom and dropped. This video inner metal is gone. www.youtube.com/watch?v=54lOrITaXpc If you are desperate metal will last part of one heating season.

Wyatt Barnes wrote:Ciao Adriano, outer riser metal acceptable, inner riser no metal just firebrick or fireclay. In the video the metal was full height inside when built. Dissolved 30 cm at bottom and dropped. This video inner metal is gone. www.youtube.com/watch?v=54lOrITaXpc If you are desperate metal will last part of one heating season.

Ok I understand it better Rieser brick, because they last forever.
But if I do the Rieser brick then I can use the rock wool insulation, are not obliged to use the vermiculte.

Yes. You can use metal on the outside of the riser to confine the insulation.