multifuel stove question,

blueband

Registered User
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101
hi all, im fitting a multifuel stove with a 4inch flu, i will be drilling in through the chimley brest to fit the flu, my question is can i get a special sealent to make a good seal where the flu goes through the wall? thankfull for any help.
 
A weak mortar mix (sand/ cement ) will probably work. I used this lately on a one meter verticle 5 inch pipe.
If the area is very hot, or the area is very close to the stove, you could use fire cement.
Its recommended to light a few small fires the first few times.
 
You can buy a tube of fire cement which is rated to something like 2000f for sealing high temperature flues. It is sold in builders providers in a tube that looks like a tube of silicone. Nasty to get off clothes and hands.
 
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