Elevate the look and functionality of your flue installation with Midtherm Trim Rings. Designed to provide a neat and professional finish, these trim rings effectively conceal holes cut in walls or ceilings, ensuring a clean, polished appearance.
Whether you’re working on a new installation or upgrading an existing system, the Midtherm Trim Rings offer versatile options to meet your needs.
Key Features:
- Flexible Installation Options:
Available as a single-piece trim for seamless fitting during the flue installation or in two half-pieces for easy retrofitting after the flue is in place. - Customisable Shapes:
Choose between square or round/oval designs to match your aesthetic preferences and project requirements. (available on request). - Premium Build Quality:
Crafted from high-grade stainless steel with precision laser-welded seams and machine-formed joints, these trim rings offer durability and style. - Seamless Integration with Midtherm HT-S Systems:
Designed to complement the Midtherm HT-S Twin Wall High Temperature Insulated Flue System, which boasts a 20-year warranty for registered and properly maintained installations.
Why Choose Midtherm?
- Unmatched Durability:
Tested for up to 450°C operating temperatures with a 4-hour fire rating, these components provide peace of mind and long-term reliability. - Wide Compatibility:
Suitable for a range of fuels including wood, multifuel, gas, oil, biomass, and pellets. - Certified Excellence:
Manufactured under ISO 9001 standards, CE-certified, and produced by a HETAS-registered manufacturer, ensuring the highest quality and safety standards.
Technical Specifications:
- Constructed from 316 stainless steel inner (0.5mm) and 304 stainless steel outer (0.5mm) for superior strength and corrosion resistance.
- Comes with locking bands for secure and consistent connections.
- Performance Rated: T450 N1 D Vm L50050 G(50).
Applications
Suitable for a variety of domestic and commercial installations, including:
- Solid Fuel
- Oil and Gas
- Biomass and Pellets
- Ventilation and Extract Systems
Comprehensive Warranty
Enjoy peace of mind with a 20-year warranty for registered installations when installed and maintained correctly.
Certifications & Assurance
HTS Twin Wall components meet Class 1 Twin Wall standards, ensuring safety, efficiency, and compliance with modern heating requirements. Installation and use must adhere to proper sizing and design specifications to maintain warranty coverage.
Why Choose Midtherm HTS?
- Trusted Reliability: Manufactured by a family-run, environmentally conscious business with a nationwide distribution network.
- Unmatched Quality: Built using advanced manufacturing and welding techniques for superior performance.
- Adaptable Design: Compatible with a wide range of appliances and fuels for versatile applications.
- Custom Finishes: Powder coating available in any BS or RAL color to complement your aesthetic preferences.
Downloads:
- Specification Sheet/ Manual: Midtherm_HTS_manual
- Brochure: QF-34-08-BRO24A
- Warranty: QF-34-08-WARA-23A-1
Specifications
HT-S Technical Specification:
| Type | Details |
| Product Code: | 08 |
| Description: | 316 / 25mm Rockwool / 304 |
| Inner Skin: | 0.5mm 316 (EN 1.4404) |
| Outer Skin: | 0.5mm 304 (EN 1.4301) |
| Insulation: | Mineral Wool 128kg/m3 |
| Insulation Thickness: | 25mm |
Product Certification:
| Certificate Name | Number | Issued By | |
| CE Mark | 0086-CPD-566560 | BSI | |
| BS 476 | WARRES – 128942 | Faverdale | |
| BS EN 1856-1:2003 | 54522/1 | BSRIA | |
| BS EN 1443:2003 | 55693/1 | BSRIA |






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