Grant Biomass 333mm Flue Extension - Black

This 125mm (5”) vertical conventional stainless steel, twin wall insulated flue system is specifically designed for use with Grant pellet boilers.

It has been fabricated to cope with continuous operating temperatures of up to 200°C although the typical flue gas temperature produced by Grant biomass boilers is less than 80°C. The system is designed so that the stainless steel outer case is load bearing and stainless steel inner liner is free to expand independently to accommodate temperature change. Available with a range of extension pieces and bends, the system can easily be assembled to suit a wide variety of installations.