Grant Boiler Insulation FKS89 Oil boilers 120cmx60cm

Grant Boiler Insulation FKS89 Oil boilers 120cmx60cm

Grant Boiler Insulation Sheet – 120cm x 60cm (FKS89)

Part Number: FKS89
For: Grant Oil Boilers
Size: 1200mm x 600mm (approx.)

Upgrade or replace your boiler's thermal barrier with the Grant Boiler Insulation FKS89, a genuine high-quality insulation sheet designed for use in various Grant oil-fired boilers. This OEM insulation panel is ideal for maintaining energy efficiency, reducing heat loss, and helping the boiler operate safely and quietly.

Perfect for internal boiler maintenance, this 120cm x 60cm insulation sheet can be cut to fit, making it a versatile replacement option for a wide range of models in the Grant range.

Key Features

• Genuine Grant OEM insulation for reliable fit and performance

• Helps maintain boiler efficiency and safety

• Dimensions: 1200mm x 600mm – can be trimmed to size

• Suitable for internal lining or panel replacement

• Reduces heat loss, operating noise, and energy usage

• Flexible and durable – made for high-temperature boiler environments

• Ideal for servicing, repairs, or refurbishments

Compatible With

• Most Grant oil-fired boilers, including Vortex and Pro models

• Used in servicing or replacing internal combustion chamber or casing insulation

• Especially useful for older units where existing insulation has degraded or perished

If unsure of fit, consult your boiler's manual or contact our expert team for guidance.

When to Replace

• During scheduled boiler servicing or maintenance

• When original insulation is cracked, worn, damaged, or missing

• To improve boiler thermal efficiency and heat containment

• If you notice increased noise levels or heat loss from the casing

Technical Specifications

• Part Number: FKS89

• Material: Heat-resistant mineral fibre

• Dimensions: 1200mm (L) x 600mm (W)

• Use: Internal boiler insulation – cut to size as needed

• Compatible with: Grant oil boilers (check model-specific requirements)