Viessmann Flue gas header 2 boilers in series 80/99 200mm dia - ZK00676

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A two-boiler system with a flue gas cascade is required for the installation of Vitodens 200-W with either 80 or 99 kW in series. The system should include a flue gas header, an end piece with a condensate drain and trap, and a flue pipe connection with a diameter of 200 mm. The maximum length of the flue pipe should not exceed 30 m.