What should you check before buying?
First, check whether your home and kitchen unit can accommodate an integrated extractor, then decide how the air will be routed. A separate hob and cooker hood are still worth comparing if you want to keep the storage space beneath the worktop.
Extractor hob with ducted extraction
Consider this if: you can route ducting to the outside and have checked whether any permissions are needed.
Bear in mind: the appliance and ducting take up space beneath the worktop and may mean adapting the kitchen unit.
Extractor hob with recirculation
Consider this if: external venting isn’t practical and the model supports an air return that suits your kitchen unit.
Bear in mind: filtered air returns to the room, and odour filters need to be accessible and maintained regularly.
Separate hob and cooker hood
Consider this if: you want to keep the storage space beneath the worktop, reuse an overhead extractor or choose each appliance separately.
Bear in mind: the cooker hood needs space above or near the hob.
| What to consider |
What to check |
Who is this important for? |
| Worktop, kitchen unit and storage |
Compare the cut-out, clearance beneath the worktop and the exact model’s required clearances with the unit’s specifications. Also allow space for the ducting or air return. |
I want to keep my drawers and avoid finding out after ordering that the extractor unit stops them opening. Around 36% of consumers put this compatibility first. |
| Airflow route |
Check whether external venting and a duct route are possible, or review the recirculation kit setup and its air outlet. |
Without easy access to an outside duct, I need to know where the filtered air will return to the room. For around 29% of consumers, the way air circulates takes priority over other criteria. |
| Project budget and maintenance |
Ask what’s included in the installation: accessories for your chosen setup, any changes to the unit, and filters that need cleaning or replacing. |
I want to compare the complete project rather than just the hob, and make sure I can carry out the required maintenance. This is the top priority for around 21% of consumers. |
| Cooking and comfort |
Compare the cooking zones, stated noise levels under the same operating conditions and access to the parts that need cleaning. |
I cook with large pans and want an extractor that’s comfortable to use and easy to clean every day. Around 14% of consumers prioritise these practical considerations. |
Brands to consider
These examples can help you identify which documents and accessories to compare. Compatibility always depends on the exact model and your kitchen project.
Bosch
Extractor hobs and accessories to consider together, depending on the installation method you choose.
- Bosch states that its HEZ9VDKE1 extraction kit is designed for worktops at least 60 cm deep.
- Check that the accessories are compatible with the E-Nr number of the hob you’re considering; this kit requirement doesn’t apply to the entire range.
Siemens
Some extractor hob models have under-worktop dimensions that are worth checking against your kitchen unit.
- Siemens gives dimensions of 223 × 592 × 522 mm for models ED631HQ26E and ED611BS16E.
- These appliance dimensions don’t replace the cut-out diagram or the clearances required for each installation.
Elica
The NikolaTesla range includes extractor hobs worth considering when space in the kitchen unit is limited.
- Elica says the NikolaTesla Fit is compatible with 60 cm units and gives a height of 19,4 cm for this model.
- Duct routes and filters depend on the model and its configuration. Check the manual before finalising your kitchen unit.
BORA
Integrated systems where the filtration setup and electrical connection need to be checked for each model.
- BORA describes the Pure PURU2R as a recirculating setup with an activated carbon filter.
- The PURU2R specifications distinguish between several types of electrical connection; don’t apply them to another model.
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Frequently asked questions
Will a 60 cm extractor hob definitely fit my kitchen unit?
No. This width alone doesn’t tell you how much space is needed for installation. Siemens gives dimensions of 223 × 592 × 522 mm for models ED631HQ26E and ED611BS16E, while Elica gives a height of 19,4 cm for the NikolaTesla Fit. Check the cut-out, clearance beneath the worktop and accessories using the diagram for the exact model.
Should I choose ducted extraction rather than recirculation?
Choose ducted extraction if a practical route to an external outlet can be included in your home and kitchen unit, and is permitted where necessary. It sends extracted air outside but requires a duct route. Recirculation avoids the need for an external duct, as long as you allow for the right kit, air return and filter maintenance for your model.
Do all extractor hobs need a 32 A circuit breaker?
No. You shouldn’t assume that the same electrical requirements apply to every model in this category. BORA, for example, lists a single-phase 1 × 32 A setup for the Pure PURU2R and also specifies other connection options. Have the circuit checked against the manual for your chosen model, taking the requirements for your installation into account.
What maintenance does a recirculating extractor hob need?
Clean the surface and make sure you can access the filters, following the manual for your chosen model. Elica advises against abrasive sponges and harsh cleaners on its NikolaTesla hobs. How often you need to maintain the odour filters depends on the model and the filter used.