What are the technical requirements for using a telescopic extension on the ED811HQ26E hood with external air extraction?

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The SIEMENS ED811HQ26E hood can be used with a telescopic extension to extract air to the outside. Here are the specific requirements:

Wall-Mounted Telescopic Extension

To ensure proper sealing when air passes through an exterior wall, it is necessary to use a wall-mounted telescopic box. This prevents air infiltration and thermal losses.

Exhaust Duct

Recommended diameter: 150 mm (interior) for round ducts
Flat ducts: interior section of approximately 177 cm²
The duct must be as short and straight as possible - long ducts reduce performance and increase noise

Following these specifications ensures optimal operation of the ED811HQ26E hood with a maximum airflow of 700 m³/h and controlled noise levels.

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