Here at Stoves ,Fires and Flues we have a comprehensive range of twin walled insulated HETAS Approved flue systems to meet all requirements, from Gas to Oil to Solid Fuel flue installations.Our range includes 5",6",7" and 8" and is also available in Black. We have lengths, elbows, tees, brackerty, supports, flashings and cowls to enable you to complete your installation.Please call us on 01626 867688 for any technical help or advice and our fully trained team.