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30 September 2015
cucina classica Time
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SIX QUESTIONS TO ASK WHEN CHOOSING AN EXTRACTOR HOOD

Essential in the kitchen, modern extractor hoods are increasingly efficient and silent. Working with interesting shapes and high-quality materials, we have succeeded ...

Essential in the kitchen, modern extractor hoods are increasingly efficient and silent. Working with interesting shapes and high-quality materials, we have succeeded in turning them into genuine design objects with high-performance operation. Here are some tips for choosing the one that best suits your needs.

1. DO YOU HAVE EXTERNAL VENTILATION??

Yes- SUCTION HOODS use an external aperture to expel stale air. The length of the air duct, as well as the curves and the type material, affect the airflow and noise level  

No - RECIRCULATION HOODS do not require an external aperture. They purify the air using a series of filters to remove particles and odours before returning the air to the room. 

When designing your kitchen, remember that each model has a recommended distance between the hob and the hood to optimise performance.

2. HOW DO YOU CHOOSE THE SUCTION POWER OF THE HOOD?

The choice of hood suction power (airflow rate) generally depends on the size of the kitchen and the cooking method. The airflow rate is expressed in cubic metres/hour (m3/h), and refers to the amount of air that the hood is able to suck up at its maximum speed.

To establish the right airflow rate for a kitchen just apply the following rule: MULTIPLY THE MEASUREMENTS OF YOUR KITCHEN BY TEN. This way you will get a value that corresponds to the correct hood suction rate for that particular kitchen.

Example: for a large kitchen 3.00 metres by 5.00 metres by 2.70 metres high, the calculation will be (3.00 x 5.00 x 2.70) x 10 = 405. Here, 405 refers to cubic metres/hour. In this case a hood with an airflow rate of 400 m3/h (or higher) will ensure the right level of air circulation.

3. DECORATIVE OR INTEGRATED HOOD?

It depends on your tastes. As well as hoods for walls and islands – particularly eye-catching – you can also opt for an integrated model that pretty much fits in with the kitchen furniture without really attracting attention.

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4. HOW WIDE MUST THE HOB BE?

Hobs normally come in widths of 60, 75 or 90 cm. The overhead hood should be at least as wide as the hob.

5. LIS THE KITCHEN OPEN TO THE LIVING SPACE OR IS IT CLOSED?

If the kitchen is open to the living room it is vitally important that the hood has a high-powered filtration system. Otherwise, steam and cooking odours can build up in the home and are not easily eliminate.

​ cucina classica Time

6. HOW DO YOU EVALUATE THE EFFICIENCY OF THE HOOD?

A recent EU directive means that from 1 January 2015 kitchen hoods must carry the energy label that indicates the energy efficiency of the product.

ENERGY EFFICIENCY INDEX is shown at the upper part of the label with an indication of the CLASS from A to G, or, if the manufacturer chooses, from A+ to F. The most visible number refers to the annual electricity consumption.

The lower part of the label shows FOUR PARAMETERS necessary for the consumer to make a complete assessment of the product: fluid-dynamic efficiency, i.e. the SUCTION QUALITY AND CAPACITY; hob LIGHTING EFFICIENCY; GREASE FILTRATION efficiency (suction); NOISE LEVEL in dB (excluding the boost function). An extractor hood for home use generally uses between 140 and 400 Watts. The most energy-efficient hoods feature high levels of fan efficiency and LED lighting with low energy consumption. Also, the more efficient appliances have an automatic shut-down mechanism to reduce air volume whenever necessary.

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