Insulation Fire Bricks

Insulation fire bricks, a specialised subset of refractory bricks, are crafted from high-purity refractory clay, endowing them with exceptional insulative properties. This makes them highly suitable for a range of industrial applications where heat management is critical. Their unique composition allows them to effectively insulate and protect equipment from intense heat, while also ensuring energy efficiency. These bricks are commonly used in the construction of kilns, furnaces, and other high-temperature environments due to their ability to maintain stable temperatures and withstand thermal shocks. Their versatility and durability make them an essential component in industries where precise temperature control is a necessity.

Key Features

  • Lightweight Design: More lightweight and less dense than traditional fireclay bricks, allowing for easier handling and installation.

  • Superior Insulation: Better insulating than dense firebricks, making them ideal for temperature-sensitive environments.

  • Low Thermal Mass: Quickly responds to temperature changes, perfect for applications where heat retention is undesirable.


  • Chimney Linings: Efficiently retains heat, improving overall chimney efficiency.

  • Ceramic Kilns: Provides consistent temperature maintenance as hot-face linings.

  • Forges and Brazing Hearths: Offers precise temperature control due to high insulation.

  • Heat Treatment Furnaces: Ideal for managing high temperatures with minimal heat loss.

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4 Items

  • Position
  • Product Name
  • Price
  1. Insulating Fire Bricks-VITCAS Grade 23 - 2300°F/ 1260°C

    Vitcas Insulation Firebricks- Grade 23. Resistant to a high temperature of 1260°C / 2300°F. Dimensions: 230x114x76mm. Ideal for situations where heat storage properties are not desired, and for insulating in different refractories- ceramic kilns, furnaces, flues and other high temperature industrial equipment.

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    Special Price £2.76 £2.30 Regular Price £7.19
  2. Insulating Fire Bricks-VITCAS Grade 26 -2600°F/ 1430°C

    Vitcas Insulation Fire Bricks- Grade 26. Resistant to 1430°C (2600°F). Dimensions: 230x114x76mm. The insulating firebricks can be used in a variety of high temperature industrial applications, such as in insulating refractories- gas producers, kilns, furnaces and stress relieving furnaces.

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    Special Price £3.35 £2.79 Regular Price £8.39
  3. Insulating Fire Bricks-VITCAS Grade 28 -2800°F/ 1530°C

    Vitcas Insulation Firebricks- Grade 28. Dimensions: 230x114x76mm. Resistant to 1530°C / 2800°F. The lightweight insulating fire bricks can be used in different industrial applications such as in lining ceramic kilns and furnaces, in areas that are not in contact with molten materials, etc. 

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    Special Price £4.56 £3.80 Regular Price £9.59
  4. Insulating Fire Bricks-VITCAS Grade 30 -3000°F/ 1650°C

    Vitcas Insulation Firebricks- Grade 30. Dimensions: 230x114x76mm. Rates at 1650°C / 3000°F. The lightweight insulation fire bricks can be used for industrial applications such as in hot blast stoves, as primary hot face linings, for back up insulation for kilns and furnaces and for flue insulation.

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    Special Price £5.88 £4.90 Regular Price £11.94
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