Vermiculite Missing

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RadoXX

New Member
Nov 5, 2025
4
United Kingdom
Hello everybody, just wanted to ask: Is it ok to use log burner stove if some of vermiculite missing? It was filled in the chimney but one side if fire resistant board fell off and some of vermiculate has dropped on the floor. I have collected it all, its about 2 bags of it. Is it still ok to use log burner or it will be any issues?

Thank you for your help guys.
 
That doesn't sound safe to burn in. The panel should be replaced.
 
The vermiculite is insulation. It protects the stove castings, keeps the fire hotter, and establishes the clearances.
 
If your burn is too hot, the concentrated heat could damage your stove. The stove would also be much more radiant in that area, which could damage your house.

Wear a respirator when handling vermiculite.
 
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Reactions: Burnin Since 1989
Is this poured chimney insulation around a liner by any chance? A bit confused by the description.
 
Is this poured chimney insulation around a liner by any chance? A bit confused by the description.
Me too. I was wondering what the source of the vermiculite was.