Buying Guide

When buying a new cooker hood there are 9 fundamentals to consider.


1 - Extraction or recirculation?

Let’s be clear: Go for extraction! This is the most long-lasting and efficient solution.

A cooker hood to be used in recirculation mode is altogether noisier. With the appliance you rarely receive technical data measured in recirculation mode (the data is almost always measured in extraction mode only). And maintenance costs are high.

A recirculation hood simply filters the air through a metal filter and a sort of charcoal filter, and no external vent is needed. However:

  1. The filter will capture some of the grease but the rest will stay in your kitchen.
  2. The carbon filter will partially remove odours for a short time but will then need to be cleaned or replaced.
  3. A hood that simply recirculates the air is unable to deal with the moist air created by your cooking.

2 - Extraction Power

In the interests of saving energy, cooker hoods may now extract a maximum of 650 m3/h at full power. This is the legal limit. Manufacturers may add a more powerful boost function but it may only be activated for a few minutes, during which it extracts up to an additional 100 m3 of air.

A hood offering the most powerful extraction capacity will have:

  • a maximum power setting of around 650 m3/h
  • a boost function of 1000 m3/h
  • multiple power levels including a low minimum level

For a less pricey model destined for a smaller kitchen, this rule of thumb gives you “minimum extraction requirements in m3/h”: calculate the volume of your kitchen and multiply it by at least ten (i.e. the length in metres x the width in metres x the height in metres x 10).

Remember that diameter and length of the tubing, and the number of 90o corners around which the air has to pass, are key factors that influence extraction efficiency. We recommend using 150mm-diameter tubing and keeping it as short and straight as possible.


3 - Noise

Cooker hoods judged to be ‘silent’ emit as little as 30 dB(A) on ‘minimum’ power and 55 dB(A) on maximum. As a point of reference, the decibel level of normal speech is 60-65 dB. The noisiest cooker hoods emit 70 dB SPL or more.

To obtain a meaningful noise level comparison for two cooker hoods, you first need to ensure that both have more or less identical minimum and maximum air extraction capacities.

Depending on the interpretation method used, an increase of 3-6 dB will double the perceived noise level. By doubling the distance (1-2-4-8…. metres) from the noise source you halve the perceived noise level. Good to know when deciding where to position your dining table.

Noise levels of hoods are always measured at a point 1.3 metres from the centre of the hood. The recently updated IEC standards define this precisely and all manufacturers use this method.


Other important features to consider when choosing a cooker hood

4 - Width: Your hood should be wider than your stove. As a general rule, we recommend a hood is 1.5 x the width of the cooking area. A free-hanging hood over an island should be twice as wide as the induction hob.

5 - Height: Always respect the manufacturer’s recommended minimum. Ensure you mount your hood sufficiently high. Allowing plenty of head room while you cook avoids any potential discomfort to your neck or your back.

6 - Lights: LED light sources are the best solution. Try to assess whether the hood’s lights are angled correctly for you, otherwise you risk being dazzled.

7 - Cleaning: Filters need to be easily accessible. Grease should have as few places as possible to gather, both inside and outside the hood. Brushed stainless steel is attractive but greasy finger marks do show up more easily. Similarly, dust is more visible on a glass canopy than on an opaque one.

8 - Features: A delay button with an automatic stop function is useful. A filter alarm is highly desirable.


9 - Cooker hood types

The two major hood categories are design hoods that are clearly visible versus integrated hoods meant to be more or less invisible.

Ceiling hoods and counter hoods represent a mix of the two, but do stay away from these unless design is your utmost priority at the expense of performance.

Visible ‘design’ hood types 

Wall hood: Novy 7600 Flatline (5414425076000)

Wall hoods

Chimney hood or T-shaped (up-side down) hoods are excellent, capturing the air in a natural way. Being wall mounted, ducting is generally uncomplicated making air extraction easier. They come in all kinds of materials, shapes and sizes and can also be fitted into a corner.

Vertical wall hood: Novy 7820 Vision (5414425078202)Vertical wall hoods

These hoods are elegant and efficient. They combine ‘wall-mounted’ advantages with clever design.

Island hood: Roblin Latitude 1500 Centrale (6054115 541100390202)Island hoods

Free-hanging hoods have three drawbacks. Firstly, they are generally about twice as expensive. Secondly, they have no wall to funnel the air thereby losing about 1/3 of their efficiency. Thirdly, ducting air to the outside is often very complicated (and an air recirculation alternative is undesirable).

 

Built-in "discrete" hood types

Conventional extractor with visor: Falmec Zeus Pro (8034122355313)Conventional extractor with visor

This classic hood is cheap and lacks power. It can be fitted under a kitchen cupboard or simply mounted in stand-alone fashion onto the wall.

Telescopic pull-out hood: Neff D46PU64X0 (4242004197560)Telescopic pull-out hood

This is semi-integrated and almost invisible when not in use: only the 5-8 cm front panel can be seen. Some pull-out hoods offer an excellent ratio between price, look and performance.


Canopy hood: Falmec Gruppo incasso NRSCanopy hood

This high performance range hood is built-in from below into an overhead kitchen unit. It is invisible, potentially very powerful, and if mounted with care quite silent. Of all hoods on the market, this type generally has the best ratio between price and performance.

Cupboard extractor: Electrolux EFI60200W (7332543094066)Cupboard extractor

This is a sub-category of canopy hood where, to turn the hood on, you simply pull what appears to be the front panel of an overhead unit towards you. This is design at its best, sadly too rarely used. Overall, performance needs to be improved for these hoods that to-date have been rather neglected by the manufacturers.

Ceiling hood: Roblin Inspiration Verre 1000 (6209253 541100389929)

Ceiling hood

With this hood type only the front plate is visible, which is located somewhere on your ceiling above your hob. In other words, it is not a hood as such, but rather it increases ventilation. However, the ceiling cooker hood is not a possibility in every kitchen: is the distance between your hob and the ceiling okay, can the cooker hood be integrated into your existing ceiling and where should the motor be? The test standards are unclear as to how to measure (or more precisely: how to accurately present) the performance of this type of cooker hoods: A cooker hood is normally tested 60 cm above the hob. For a ceiling hood this method exaggerates the extraction and filtering performance, and overstates the noise level.

Downdraft extractor: Rosières RDD9800PN (8016361906013)Downdraft extractor

This integrated extractor is invisible when not in use as it is hidden within the counter. This clearly compromises “hood function”. The downdraft extractor is for those who cook on an island but wish an integrated and minimalist look – and are ready to pay a rather high price! We have yet to see a satisfactory design and be convinced that this is a good solution.

How to fit an extractor cooker hood

5 tips on how to install the tubes for the air extraction

  1. The air extraction channels should be as short as possible.
  2. Avoid bends and curves in the ductwork.
  3. Choose a (semi) rigid and smooth tubing.
  4. Respect the diameter of the cooker hood exhaust valves.
  5. Insulate the duct.

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