12 Metre Flexible Flue Liner Kit – 5" (125mm) – 316/316 Grade Stainless Steel

This 12 metre flexible flue liner kit is the perfect solution for relining tall chimney stacks in three-storey homes, townhouses, or commercial properties. Built from 316/316 stainless steel, it delivers long-lasting performance, flexibility, and corrosion resistance. Suitable for wood-burning and multi-fuel stoves with a 125 mm outlet, this all-in-one kit provides everything required for a safe, compliant installation.

Please note: This product is non-refundable, as the liner is cut to size specifically for your order.

What’s Included in the Kit

1. 12 Metres of 316/316 Grade Flexible Flue Liner

• Double-skin 316L stainless steel (inner and outer)

• Highly flexible, strong, and resistant to corrosion

• Suitable for wood, oil, gas, and low-sulphur coal

2. Terracotta-Coloured Rain Cap with Bird Guard

• Prevents rain ingress, debris build-up, and bird nesting

• Traditional terracotta finish blends with chimney pots

• Quick, secure fit onto the flue liner

3. Stainless Steel Stove/Flue Adaptor (125 mm)

• Connects your stove’s 125 mm outlet to the liner

• Stainless steel construction for strength and durability

• Ensures an airtight, reliable connection

4. Installation Data Plate

• Mandatory for HETAS and Building Regulations compliance

• Records liner grade, fuel type, installer details, and installation date

Product Specification

• Liner Diameter: 125 mm (5")

• Length: 12 metres

• Material Grade: 316L stainless inner / 316L stainless outer

• Fuel Compatibility: Seasoned wood, gas, oil, low-sulphur coal

• Certification: EN1856-2 Compliant, HETAS Approved

• Application: Relining masonry chimneys for stove installations

Why Choose This Kit?

• Twin-skin 316/316 stainless steel for maximum durability

• Flexible design for easier installation in tall or irregular flues

• Fully certified and compliant with UK standards

• Suitable for DEFRA-approved wood and multi-fuel stoves

• All-in-one package for convenience and peace of mind

Perfect For

• Three-storey homes, townhouses, and tall chimney stacks

• Wood-burning and multi-fuel stoves with 125 mm outlet

• Renovations or retrofits needing chimney relining

• Installations requiring HETAS sign-off or Building Control approval

📞 Need help choosing the right flue liner length or configuration?
Our team is on hand to provide expert guidance.