Suitable for range of: HRE Combi, Open Vent, ECO RF and System boilers.

Once the flue has been installed and the appliance commissioned, You as a Gas Safe Registered Installer should observe the plume direction. Particular attention should be drawn to plume vapour re-entering the boiler via the air intake. If this occurs, it is highly possible the flue is fitted within a negative pressure area and therefore a plume management kit (PMK) must be fitted.