Cooker hood buying guide

Cooker hood buying guide

The availability of sealed heating systems, insulation, and the double glazing can quickly stop the circulation of air. This means that extraction is needed to get rid of moisture and odor that are caused when you are cooking. Here is a quick buying guide that will help you make decisions about what’s best to be used in your kitchen.



Extract or re-circulate?

The majority of the cooker hoods that we have can be set to either re-circulation or extraction mode. If you discover yourself in this spot, and you want to set your cooker, then extraction should override the other mode. But we are not going to leave you without telling you the pros and cons of using both of them.


How extraction works

Steam and odors are channeled out of the kitchen to the outside through a ducting.


– Eliminates airborne contamination, for example, odors, and smoke among others.

With this cooker, you don’t need to replace your charcoal filters on a regular basis. This means that the long-term costs are going to be cheaper.

– The rate of airflow is higher in the front of the motor because there is no charcoal filter.


– Not all kitchens will allow for extraction to take place because they lack enough space that will be used for ducting.

– There is an additional cost that you will have to spend, for instance, the cost of ducting and installing.



How re-circulation works

Activated charcoal is put into a filter, and it can be used to remove odor and smell from the air. All this will have to happen before the scrubbed air is directed back to the kitchen.


– It can be installed in any place that you want, especially in places that you can’t reach with ducting.

– Installation costs are cheaper as ducting is not required.


– It can drawback some moisture into the kitchen

– Charcoal filter needs annual replacement

– Charcoal filter placement in front of motor decreases airflow



If air is circulation back through the cooker hood, it’s taken through two filters. These filters are grease and the charcoal filter.

When you buy cooker hoods, they all come with a grease filter and not a charcoal filter. The charcoal filter can be obtained from manufacturer’s website or dedicated accessories and free shop. A re-circulation kit that contains additional essential components is also needed to ensure that odor-free air is returned to the kitchen.



A charcoal filter needs to be replaced annual or so, but this depends on how regularly you use your cooker hood. The grease filter can both be replaced if it’s a paper filter and washed in dishwater if it’s a permanent metal filter.


What next if you’ve decided to extract


Ducting kits aren’t sullied with cooker hoods and can be obtained directly from the supplier. Or, generic ducting is also available from all good DIY stores. If the cooker hood offers a choice of using either 150mm or 120mm with an adapter diameter ducting, you can opt for 150 mm ducting if you can be able. This will offer a slight improvement in airflow rate in your kitchen since the ducting is wider.


You might ask yourself what extraction rate you need. But don’t let this question bother you so much. To work out the extraction rate you need for your kitchen, you can calculate the volume of the cabin in cubic meters and multiply by twelve. This is to allow for twelve recommended changes of air per hour.



The noise of the hood can be intrusive when on intensive or high speed. But a good tip especially if you’re taking your meals in the kitchen, the best thing to do is to switch the hood for a few minutes before you start cooking to allow aeration in advance. You can switch if off or to the lowest setting when you are about to eat.


There is some essential erudition you need to know. Always position the hood at a minimum of 65 cm above a gas hob or 50cm above an electric hob. It’s also important to check with the manufacturer the minimum height needed above your hob to avoid guess work that can bring errors.