Non-combustible, heat-resistant loose-fill insulation.

Loose-fill insulation materials are essential for the thermal insulation of fireplaces, masonry heaters and other wood-burning appliances. Commonly used insulation materials include expanded clay beads, glass beads, vermiculite and mineral fibres.

Expanded clay beads are light and insulating; they are poured around flues and walls to reduce heat loss. Glass beads, made from recycled glass, are non-combustible and heat-resistant, ideal for insulating fireplaces and masonry heaters.

Vermiculite, an expanded mineral, is a popular loose-fill insulation because of its lightness and heat resistance. Mineral fibres, such as rock wool and glass wool, offer good thermal insulation and are also heat-resistant.

When using loose-fill insulation, it is important to follow the manufacturer's recommendations to ensure correct, safe installation. This will help reduce heat loss and optimise the efficiency of your heating system.

For specialist advice on installing loose-fill insulation in fireplaces and masonry heaters, consult experts in the field and comply with local fire safety and building regulations.