Fire Bricks

Vermiculite Board

Contact Ace Stoves for heat resistant Vermiculite board for stove fire bricks and registration plates, fireproof fireplace surrounds and wood burning stoves. Vermiculite is cheaper and more efficient than fire bricks. Our firebricks are highly insulating refractory panels made from vermiculite containing no ceramic fibres. The Vermiculite boards are available in a number of different sizes.

Vermiculite boards are easily to cut and shape to any size fire bricks with woodworking tools; as shown in picture on right, and have a multitude of design possibilities.

  • High temperature resistance

  • Do not expand

  • Low heat accumulation in lining materials

  • Good thermal shock resistance

  • High mechanical strength

  • Good insulation capacity providing better combustion in wood burning stoves and cleaner waste gas.

  • No ceramic fibres

  • Non-dusting surfaces

  • Non-irritant

  • Odourless


Fire Resistant vermiculite board offer excellent thermal insulation properties and minimal shrinkage at high temperatures. These products find application where fire protection is needed such as in replacement Fire Bricks, panels and bespoke applications where fire resistance or low electrical conductivity is required.

Increase the efficiency of your Wood burning Stove

A good idea which increases efficiency of your Wood burning Stove is to replace the grate or cover it with a piece of vermiculite board and allow a good layer of ash to form on the base of the stove. This reduces the primary air flow and slows down the rate at which the wood burns.

What is Vermiculite

Vermiculite is the geological name given to a group of hydrated laminar minerals which are aluminium-iron-magnesium silicates, resembling mica in appearance. Rock and other impurities are removed from the crude ore which is then crushed and sorted into sizes. It is a safe inert material, light in colour. When heated it expands (exfoliates) up to 30 times its original volume. The exfoliation process converts the dense flakes of ore into lightweight porous granules containing innumerable minute air layers. Exfoliated (expanded) it is light and clean to handle, has a high insulation value, acoustic-insulating properties and will absorb and hold a wide range of liquids.

These granules are non-combustible, and are insoluble in water and all organic solvents. The expanded mineral is easily poured, is light, clean, highly absorbent and provides baffle against impact shock when used for packaging.

Exfoliated vermiculite is used in the friction brake linings market, high temperature insulation, loft insulation, various construction products, animal feeds, horticulture and many other industrial applications. With its layered structure and surface characteristics is utilised in products such as intumescent coatings and gaskets, the treatment of toxic waste and air-freight packaging of hazardous goods.

Vermiculite is inorganic

  • No emission of toxic gasses

  • No emission of smoke or odour

  • Non-combustible

  • No known health hazards

Vermiculite Fire Brick

Pack A

Vermiculite Pack A


62X51x2.5CM (PACK OF 2)
Price includes delivery

Pack B

Vermiculite Pack B


51X31X2.5CM (PACK OF 2)
Price includes delivery

Pack C
Vermiculite Pack C


34x20 X 2.5CM (PACK OF 2)
Price includes delivery

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, alternatively you can email us via the form on our contact page.