Rangehood extractors can be hidden in cabinets for those who don't wish to see them but in most kitchens the become a focal point. They are intended for removing fumes from the mome to the outside but once fixed to the wall, cannot be ignored. So they actually have both and functional purpose and an aesthetic aspect.

When considering the functional aspect of the rangehood, most of us think of the power or how much air they move per hour. Most manufacturers provide a number of cubic metres per hour (M3ph) to indicate how powerful their rangehood is. However, this number is determined in a factory test room with the appliance unencumbered by ducting. Remember that as soon as ducting is attached to the outlet resistance is created to the airflow, which reduces it. The longer the length of ducting and the more bends the less the airflow. So the manufacturer's claim is only a guide to what the rangehood might in fact achieve.

Choosing A Rangehood

The two main issues you face when choosing your extractor are what it looks like and how it performs. Nobody can advise you on your taste preferences but there are some factors about performance to bear in mind. A rule of thumb for determining how much air moving power you need is to accept no less than 600 M3ph for a small kitchen or 1000 M3ph for a large one. Remember that it's better to use your rangehood on low power since a fan working flat our is much more noisy than one cruising at low speed. This means that choosing a higher powered one that you really need is a good idea. Also be sure to use good quality ducting since this is likely to produce less air resistance, therefore making your extractor more efficient and less noisy. If noise is an issue for you then incorporating a rangehood silencer is a good idea.

Installing A Rangehood

Although hanging a rangehood on the wall is pretty straightforward (they all come with instructions) and it can just be plugged into an adjacent socket (assuming there is one) you will need to consider the electrical supply and concealing the socket. The tricky part of the installation is the ducting. In most cases the duct will go up into the loft space and either through the soffit of the roof. If your extractor is on an outside wall you might be able to go straight out behind (or up and behind in case of a canopy rangehood). In any event do not skimp on the ducting. Use the best sysem you can to avoid disappointment.

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