Flue for wall mounted heater especially water heater has a coaxial exhaust and fresh air duct with connection at rear or on top of housing

摘要

A flue for a wall mounted heater, especially a water heater, has a coaxial design with inner flue duct and outer fresh air duct. The combine duct has two options; a rear connection (15) through the mounting plate or a top connection (2) via a cowl (2). The duct selection is enabled via a movable blanking plate inside the housing.