HT-PLUS is a Class 1. Chimney manufacturedwith the following specification using the latest manufacturing and welding technology ensuring high quality and value for money:

0.5mm 304 Stainless Steel Outer Skin,
25mm Rockwall Insulation,
0.5mm 316 Stainless Steel Inner Skin.

Suitable for use with all fuel types, with flue gas temperatures not exceeding 760°C.

The internal dimension on this pipe is 7" (180mm) and the outside diameter is 9" (220mm)