How Do You Fit an Extractor Fan in a Kitchen?
A kitchen extractor fan is fitted by securing the unit to a wall unit, island ceiling or dedicated mounting position, connecting it to a duct that exits through an external wall or roof, and wiring it to the electrical supply. Ducted extraction is preferred over recirculation for performance.
Types of Kitchen Extraction
Ducted extraction removes cooking fumes, steam and grease through a duct to the outside. It is the most effective system. Recirculation systems filter air through charcoal and return it to the room — no external duct is needed, but they are less effective at removing moisture and heat.
Installation Steps for a Ducted Extractor
- Route the duct from the extractor position to an external exit point (usually through a wall behind the kitchen or upward through the ceiling)
- Fit the duct grille on the external wall
- Secure the extractor housing to the wall unit, ceiling or island support
- Connect electrical supply (typically via a switched fused spur)
- Connect the duct to the extractor
Who Does the Extractor Installation?
The kitchen fitter typically installs the extractor housing and duct within the kitchen. If the duct exits through an external wall, this element may require a builder or be done by the fitter if access allows. The electrical connection must be made by a qualified electrician.
Related Questions
Not usually for a standard extraction to an external wall. Some installations (listed buildings, conservation areas, certain flat regulations) may require consent. Check with your local authority if in doubt.
Extractor ducts should be as short and straight as possible. Most extractor fans are rated for a maximum duct run of 3–6 metres with bends reducing effective extraction. Longer or more complex runs may require a higher-power fan.
Yes, though performance is lower. Recirculating models are the only option where external extraction is not possible (e.g. in apartments or where the cooker is in the centre of a room with no nearby external wall).
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