Tested to BS EN 1856-2 and BS EN 1443
Midtherm Midflex is a twin wall flexible flue liner designed for relining existing chimneys in domestic and light commercial applications. Suitable for gas, oil, solid fuel and multifuel appliances, it provides a reliable and efficient solution for chimney renovation and new installations.
Manufactured using high-grade stainless steel, Midflex is available in both 316L and 904L grades to suit different fuel types and operating conditions. The twin wall construction, with a smooth inner bore and flexible outer profile, ensures excellent flue gas flow while maintaining structural integrity throughout the length of the liner.
Designed for performance and longevity, the system offers excellent resistance to corrosion and high operating temperatures, with a maximum temperature rating of up to 600°C.
Manufactured and stocked in the UK, Midflex is available in coils and cut lengths, with a full range of ancillary components for complete system installation.
Applications:
- Solid fuel and multifuel appliances
- Wood-burning stoves
- Biomass and pellet systems
- Gas and oil appliances
- Chimney relining projects
Key Features:
- Twin wall flexible liner for chimney relining
- Available in 316L and 904L stainless steel grades
- Smooth bore inner wall for improved flue gas flow
- High resistance to corrosion and condensates
- Suitable for high temperature applications (up to 600°C)
- Supplied in coils or cut lengths
- Manufactured and stocked in the UK
Specification:
- Construction: Twin wall flexible liner
- Material: 316L or 904L stainless steel
- Maximum operating temperature: 600°C
- Diameter range: 125mm – 200mm
- Finish: Stainless steel (dull 2B finish)