Tee Cap with Drain Point Matt Black HT-S By Midtherm

Product Code: 28 Categories: ,

From: £44.70

From: £44.70



Midtherm Flue Systems is a family run environmentally aware company specialising in the production and distribution of Class 1 Chimneys, Vitreous Enamel and flexible Liners for the wood burning stove industry. Currently the only British owned UK based manufacturer in the industry we also manufacture flue and exhaust products for commercial and industrial applications, Distributing Nationwide.

Product Summary 08 – HT-S

Push fit, stainless steel, twin wall insulated chimney for use on medium and high temperature solid and multifuel applications. HT-S is Class 1 Twin Wall insulated flue systems for medium and high temperature applications for gas, oil and solid and multifuel applications, manufactured using the latest manufacturing and welding technology ensuring high quality and value for money. HT-S is available in 100mm, 130mm, 150mm, 175mm, 200mm, 250mm and 300mm. larger diameters are available to order. Available in diameters from 100 to 350 mm – Stocked in sizes from 130 to 300 mm Available from 100mm to 300mm diameters from stock, larger diameters and special items available on request. Maximum operating temperature 450 deg C Standard finish is: Bright annealed stainless finish (All products can be powder coated to any BS or RAL colour code) offering an extended 10 year warranty for registered HT-S twin wall installations, against defects due to faulty manufacturer defective materials, provided that the product is used only for the intended purpose, is sized, designed and installed correctly for the appliance and route, is used only with suitable fuels and is properly maintained. All installations for which the Warranty is to apply should be registered with Midtherm Flue Systems Limited. Please download our warranty scheme for full details. Suitable for the following Applications: Ventilation and Extract, Gas, Oil, Solid Fuel, Pellet, Biomass, 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. A 1500mm length is available in this range. HT-S is designed for the domestic and commercial market serving gas, oil, solid fuel installations, peat, wood and other biomass. 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.

HT-S Technical Specification:



Product Code:



316 / 25mm Rockwool / 304

Inner Skin:

0.5mm 316 (EN 1.4404)

Outer Skin:

0.5mm 304 (EN 1.4301)


Mineral Wool 128kg/m3

Insulation Thickness:


Product Certification

Certificate Name


Issued By


CE Mark




BS 476

WARRES – 128942



BS EN 1856-1:2003




BS EN 1443:2003




Additional information