HTS Twin Wall (Matt Black)

Matt Black HT-S Description:

Midtherm HT-S is a Class 1 Twin Wall insulated flue system for medium/high temperature, gas, oil, solidfuel and multifuel applications. Powder coated Matt Black, in a full architectural polyester powder – TGIC with a 30% gloss level. Matt black HT-S is available in 125mm, 150mm, 175mm, 200mm, 250mm, 300mm and 350mm.

HT-S has a 0.5mm 316L 2B grade stainless steel inner liner with a welded seam, 25% thicker than most other twin wall systems on the market, 0.5mm 304 BA grade stainless steel outer casing with a welded seam and 25mm high density mineral wool insulation. HT-S has a smooth, modern appearance, the external liner has a mechanically formed socket and spigot connection that ensures a consistent, easy, close fitting joint every time. The locking band has an over centre stainless steel clip that is easy to secure. This locking band is a channel type giving a smooth line to the system and improving aesthetic appearance of the flue.

HT-S is designed for the domestic and commercial market serving gas, oil, solid and installations, peat, wood and other biomass. Midtherm HT-S has a high temperature or low temperature negative pressure designation depending upon the components used and the installation design making it a good all round product for multiple installation requirements.

All flue system installations, i.e. oil, gas, solid and multi fuel, should be carried out by a suitably qualified installer or Building Control Department permission must be granted.

For detailed installation guidelines please refer to:

The relevant Technical Information and Installation Instructions
Building Regulations
Planning Office
Appliance Manufacturers Operating and Maintenance Instructions
Relevant British Standards

Matt Black HT-S Technical Specification:
Type Details
Product Code: 41
Description: Powder Coated Matt Black HT-S
Inner Skin: 316 2B
Outer Skin: 304 BA
Insulation: High density mineral wool
Insulation Thickness: 25mm