Duct suitable for carrying hot or cold treated air. Suitable for all ventilation systems requiring thermal insulation. Inner fibreglass insulation. Prevents condensation. Enchances chimneys'natural draw.
Supplied in three modalites : 1. stainless steel insulated inside and outside 2. stainless steel insulated inside and galvanized outside 3. galvanized insulated inside and outside. * Specially adapted parts upon requested.