Existing chimney?

Fossil fuel Agas use chimneys to remove the harmful gases but also serve as a natural extractor for cooking smells. With the eControl System you have options; 1) Room venting where cooking smells terminate in the rood like a conventional cookers, 2) Reutilize an existing chimney for cooking smells ventilation only but not for the massive heat loss associated with traditional models, 3) Upgrade to a fan-enabled control box which when connected to an externally mounted extractor fan will serve as mechanical extraction.