Raccord concentrique De Dietrich 7313748

The concentric connection is a flue gas and air intake component used in balanced flue boilers and heating systems. It allows for the simultaneous exhaust of combustion gases and intake of fresh air through a single wall penetration, typically using a concentric pipe system. This connection ensures efficient and safe operation by maintaining the correct air-to-fuel ratio and preventing backdrafting. Over time, seals may degrade or the connection may become damaged due to thermal cycling or corrosion. Replacing it with this concentric connection restores proper flue function and helps maintain the boiler's efficiency and safety. Suitable for various boiler models, this part is a common replacement during maintenance or when upgrading flue systems. Always verify compatibility with your boiler's flue outlet size and type before installation.