Combustion results of ADL-COAX/CLVp, 3CEp system, C42, C43, C82 or C (10) 2, C (10) 3, C (12)2, C (12) 3 type hermetic combi boilers connected to a single concentric collective flue system. These are the systems in which the waste gas formed is thrown into the atmosphere from the inner wall and at the same time, they provide fresh combustion air to the devices from the space between the inner wall and the outer wall.

The system works under positive pressure.

According to EN 13384-2, the Air Waste Gas System offers the opportunity to connect a total of 20 hermetic devices, with a maximum of 2 devices on each floor, to a single chimney.