The Midtherm HTS 180mm (7") Twinwall Storm Collar is a cravat style metal flashing designed to fit around flue pipes and preventing rain and weather from running down the pipe and into your property. This is the second part of any two-part flashing and fastens around the pipe above the flashing and should be fixed into place with silicone. Available in a stainless steel finish as standard, this collar does not have an internal diameter, however it is designed for use with 180mm twinwall with an outside diameter of 225mm. HTS is a Class 1. Twinwall chimney product manufactured by Midtherm Flue Systems right here in the UK and is suitable for use in both domestic and commercial applications.
Midtherm are a family run British company that have been manufacturing for over 45 years. Founded by Ray Andrews in 1970, Midtherm has steadily grown over the years into one of the leading chimney manufacturers in the industry. The HTS range is the culmination of years of design and development work, and is a firm favourite within the heating industry.