Vermiculite is a light weight naturally occurring mineral which is an excellent heat insulator.
Vermiculite chimney insulation mix.
Use to fill in voids and corners around a cera foil insulated flue liner.
100litre bag of vermiculite insulation for backfilling the chimney around the liner.
Simply prepare by gradually adding 4 7 gallons of water.
Lift liner a tad to settle any bridging and top off as needed.
This stuff absorbs and retains water so if your chimney leaks water at all the insulation material will gradually get wetter absorbing like a sponge.
The inter laminar air spaces created imparting excellent thermal insulation properties on the material.
Perlite is the choice to super insulate the rear of the bellfires firebox behind the 1 inch cera foil blanket.
Everguard insulation mix is a ready mix vermiculite based insulation material.
Pour around stainless steel liner if no room for blanket wrap.
Vermiculite is used as a lightweight filler liquid absorbent for dangerous goods and lab packing and as a liquid.
Fireside s poured insulation is a mixed vermiculite masonry material used for chimney flue insulation.
Vermiculite also known as micafil is a excellent insulating material capable of withstanding temperatures in excess of 1000c the free flowing properties of loose fill vermiculite make installation very simple with the flue liner already connected to the stove pipe and register plate in place and secure leave the liner protruding from the top of the chimney or pot then pour the insulation.
I have my reservations about these methods.
Vermiculite is ideal as a pool base under vinyl lined pools chimney insulation mix light weight aggregate in plaster and concrete attic insulation aggregate in spray on fireproofing and as a masonry fill insulation.
It can be used to pour back down the chimney filling the void between the brick chinmey and the flexible flue liner.
The raw vermiculite is mined and graded in varying parts of the world prior to being exfoliated in our plant.
A chimney that is 13 long x 13 wide and is 15 tall with a 6 liner installed needs 8 bags of fireflex mix.
I am a member of an installers forum.
Place liner top plate and clamp tight seal with rtv silicon to minimize air leakage through insulation.
Pour the mix around the chimney liner while shaking the liner.
Purchase vermiculite or perlite from garden supply store in 4 cu.
Pour content of bag in space between liner and old chimney.
Update 26 sept 2018.
Super mix and perlite hi temp insulating material.
