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Solid Fuel Fired Models - Ventilation
Like all solid fuel appliances, the Aga requires a permanent air supply into the kitchen to provide both air for combustion and also to enable the chimney to operate.
A permanent opening of 30 sq.cm free area is required and normally a 6" x 9" brick will provide this amount. Extractor fans and cooker hoods do not give a supply of air into the room, as they are busy sucking it out, as do other appliances such as a tumble dryer.
If other combustion appliances are fitted in the same room as the Aga, then additional ventilation will be required.