Integrated downdraft extractor

A smart solution for your kitchen
A cooktop with an integrated axtractor is a smart and space-saving solution that combines modern design with efficient ventilation. This type of cooktop is particulary well suited for kitchen isalnds and open-plan sapces, where traditional range hoods can appear visually dominant. Before choosing your model, however, there are several important factors to consider to ensure you select the best solution for your kitchen.

Does the cooktop fit your kitchen?
Before investing in a cooktop with an integrated extractor, it is important to ensure that it fits your kitchen both physically and functionally. Start by measuring the cut-out in the worktop so you choose a model in the correct size. In addition, you should consider how much space is required beneath the worktop for the motor and any ducting. If you choose a ducted model, space is needed for ventilation ducts, while a recirculating model requires sufficient air circulation for effective filtration.

Our cooktops with integrated extractors are based on induction technology, ensuring fast heating and precise temperature control. When selecting a model, you should also consider the number of cooking zones. Standard models feature four zones, while some variants offer greater flexibility with bridged or combined cooking zones that can be adapted to large pots and pans.

Recirculation or ducted extraction
When choosing a cooktop with an integrated extractor, it is important to consider how the air should be removed. You can choose either a model with ducted extraction to the outside or a recirculating solution, depending on the kitchen layout and installation options.

A cooktop with ducted extraction to the outside ensures efficient removal of steam and cooking odours by directing the air out of the home through a ventilation duct. To achieve optimal extraction performance, the duct should be as short and straight as possible, allowing the airflow to remain strong and efficient. This solution is ideal if the home allows ventilation through an external wall or chimney.

If it is not possible to install ducted extraction to the outside, a recirculating model can be a suitable alternative. In this case, the air is cleaned through a carbon filter that captures grease and odours before the purified air is returned to the room. This solution is flexible and well suited to kitchens where an external duct is not an option. To maintain effective filtration, recirculation models require regular replacement or regeneration of the carbon filter.

The choice depends on the installation options of the home and the applicable requirements.

Building regulations and requirements
In some homes, building regulations require the extractor to be ducted to the outside – which is also our recommended solution. Before choosing a model, you should therefore always check the applicable regulations and requirements for your home.

Installation – correct from day one

Correct installation is crucial to ensure that your cooktop with an integrated extractor performs optimally and contributes to a healthy indoor climate. The solution can be installed with either ducted extraction to the outside or recirculation, but ducted extraction is always recommended, as it provides the most efficient ventilation and the best removal of steam and odours.

To achieve the best performance, the ventilation duct should be as short and straight as possible. Unnecessary bends, long duct runs, or reducing the duct diameter create resistance in the airflow and significantly reduce efficiency. The duct diameter must never be reduced – each model is designed for a specific duct size, which must always be maintained. If the ducting is reduced, the airflow will be restricted, and the extractor’s suction performance will be severely compromised.

Installation depth, dimensions, and space requirements vary from model to model and must therefore be checked carefully before purchase. The same applies to whether the cooktop can be flush-mounted, as this depends on the specific model. The ducting can often be routed discreetly behind or beneath kitchen cabinets without compromising storage space.

Note: Installation and electrical connection should always be carried out by an authorised technician to ensure correct function, operational reliability, and compliance with applicable regulations. Thermex does not perform the flush-mounting itself, but we are always ready to provide advice to ensure you choose the right solution and achieve an installation that works correctly from the very first day.

Maintenance & Accessories
To ensure your cooktop performs optimally and has a long service life, regular cleaning is essential. This helps maintain efficient extraction and reduces the risk of grease build-up.

Cleaning the cooktop
Clean the cooktop after each use with a damp cloth and a mild detergent. Avoid abrasive cleaners and scouring pads, as these can scratch the surface. For burnt-on residues, use a glass scraper, while metal marks and limescale stains can be removed with a specialist cleaner or vinegar.

Cleaning the grease filter and grille
The grease filter captures grease from cooking and should be cleaned at least once a week or as needed. It can be washed by hand or in a dishwasher at a low temperature. The grille should be cleaned with warm water and mild soap, but must not be scrubbed with hard or abrasive materials.

Emptying the water collection container
Check and empty the collection container every two weeks to prevent the build-up of liquid and grease, which can negatively affect extraction performance.

Replacing the carbon filter (for recirculation models)
If your model uses recirculation, the carbon filter must be regenerated or replaced regularly. Always follow the manufacturer’s instructions to ensure the filtration remains effective.

By following these simple routines, you will maintain a clean and efficient cooktop with an integrated extractor for many years.

Depending on your chosen installation, it may be necessary to purchase additional ventilation ducts, extraction kits, or extra filters to ensure optimal performance.

Checklist Before Purchase
Now that you’ve gained insight into what to look for, it’s time to make sure you’re fully prepared to choose the right model. Use this checklist to double-check that you’ve considered everything:

► Extraction or recirculation? 
Which solution best suits your kitchen?
► Size and installation
Does the cooktop fit your countertop, and is there enough space for ducting?
► Accessories and spare parts
Do you need additional filters, ducts, or installation kits?
► Maintenance 
Are you aware of cleaning requirements and filter replacement?
► Ease of use
Does the model include the features that make cooking easier for you?

Do you have any questions? Contact us or visit one of our retailers to experience our products.