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In these modern times families are becoming more and more concerned about
their living environments. A Range Hood in their kitchen can help to eliminate
fumes and smoke caused by cooking. However, Range Hoods differ in their
capacity. So how do you choose an appropriate Range Hood? |
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| Tips for choosing a Range Hood: |
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Motor velocity
At electrical appliances stores, the shopkeeper would usually tell a customer
that the more powerful the motor, the better the Range Hood is. This is not
necessarily the case. What matter most is the materials, quality and design of
the motor and the blades. As a general rule, a motor velocity of 1,300 RPM or
above would be sufficient. |
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Design of exhaust chamber and fan
The capacity of the exhaust chamber must be adequate. Therefore, the body of
the Range Hood should not be too slim (not less than 150mm - 180mm).
 If the
body is too narrow, the air ventilation chamber would be insufficient resulting in
noise. Proper design of the fan blades facilitates the extraction of grease,
smoke and heat out of the kitchen through the exhaust pipe.
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 Exhaust pipe
Too long or too much contortion of the pipe will hinder the normal exhaust
function. The exhaust pipe made of aluminium is better as it allows the pipe to
bend at a smoother angle. The standard diameter of the exhaust pipe in Hong
Kong is 6 inches (150mm). If the pipe is too narrow, the exhaust air may flow
back and produce noise. |
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Design of the basin
There must be good depth in the basin or base compartment, and the more
concave, the better. The theory is similar to the building of the ancient style
Chinese booth (as an outdoor shelters) with a convex roof under which there is
greater flow of air, whereas a Western-style flat roof cannot achieve the same
effect. |
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The smoke shield
The smoke shield would compensate for the inadequate depth of the basin. It
helps to deter the smoke and the grease from flowing out into the kitchen.
Higher grade Range Hood also have side and rear panels for further cleaning.
Tested reports show that Range Hood with side and rear panels function 30%
more efficiently than those without. |
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