The Midtherm HTS 150mm Length Twin Wall Flue in Black is a compact insulated section designed to provide precise adjustment and accurate spacing within a high-temperature chimney system. Its short length makes it ideal for fine-tuning installations, aligning components, and achieving exact flue runs in both residential and commercial environments. Suitable for medium to high-temperature applications, it supports solid fuel, multifuel, gas, oil, biomass, and pellet appliances.
Built with a 0.5mm 316 2B stainless steel inner liner and a 0.5mm 304 BA stainless steel outer casing, the flue section offers strong protection against heat, corrosion, and continuous operation. The 25mm insulation layer maintains high thermal performance and ensures safe surface temperatures. The powder-coated black finish delivers a clean, modern aesthetic that integrates well with contemporary stove and chimney designs.
Using a push-fit socket and spigot connection system, this 150mm section installs quickly and securely with the included locking band. Rated for 450°C continuous operation with a 4-hour fire rating, the component meets Class 1 Twin Wall standards and is fully CE-certified and HETAS-approved. When installed and maintained correctly, it is covered by a 20-year warranty for long-term assurance.
Features and Benefits
- Compact 150mm length for precise adjustments
- 316 stainless steel inner and 304 stainless steel outer construction
- 25mm high-density insulation for heat efficiency
- Push-fit joint with locking band for secure installation
- Powder-coated black finish for modern appearance
- High-temperature rating up to 450°C
- Compatible with solid fuel, gas, oil, biomass, and pellets
- Certified to Class 1 Twin Wall standards with 20-year warranty
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