The Midtherm HTS Twin Wall 30° Angle Black Elbow is engineered for high-performance flue systems that require dependable insulation, long-term durability, and a clean contemporary finish. Constructed with a 316L stainless steel inner liner, a 304 stainless steel outer casing, and 25mm high-density mineral wool insulation, this component delivers stable heat control and long-lasting structural integrity. Designed for systems running on solid fuel, multi-fuel, gas, oil, or biomass, it offers a robust solution built by Midtherm Flue Systems, the only British-owned manufacturer in the sector.
Its powder-coated black finish provides a refined visual profile, ideal for installations where appearance matters as much as performance. The push-fit socket and spigot system allows for swift, reliable assembly, supported by a precision-made locking band that ensures tight, visually seamless joints. Engineered to tolerate continuous operation up to 450°C, the 30° angle offers a high level of resilience for demanding residential and commercial heating setups.
Available in multiple diameters from 100mm to 300mm, this insulated elbow adapts easily to a range of chimney designs and appliance types. With a 20-year warranty on correctly installed and registered systems, and full certification under CE, BS 476, BS EN 1856-1, and BS EN 1443, it delivers the assurance required for safe, compliant, long-term operation. Its British manufacturing heritage ensures consistent quality and dependable performance across all project types.
Features and Benefits
- 0.5mm 316L stainless steel inner liner for long-term durability
- 0.5mm 304 stainless steel outer casing for external protection
- 25mm mineral wool insulation for stable thermal performance
- Rated up to 450°C for high-temperature systems
- Powder-coated black finish for modern aesthetics
- Push-fit system for fast, reliable installation
- Stainless steel locking band for secure, clean joints
- Diameter options from 100–300mm for flexibility
- Suitable for solid fuel, gas, oil, and biomass systems
- Backed by a 20-year warranty
- Fully compliant with CE and British Standards


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