The DTW twin wall flue system is an insulated flue system designed for the safe and efficient venting of exhaust gases from heating appliances like wood-burning stoves, pellet stoves, and boilers. Available in black or stainless steel finish, it features a stainless steel inner and outer casing with insulation in between which helps maintain optimal flue temperatures and prevents heat transfer to the outer wall, making it safe for installation near combustible materials. Known for its durability and ease of installation, the DTW twin wall flue uses a push-fit jointing system secured with locking bands to ensure a tight and secure fit. It is available in various diameters to accommodate different installation needs. This flue system meets high safety and performance standards, being CE and HETAS approved, and comes with a 25-year warranty for long-term reliability and peace of mind.