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Finish
Anything under 15°C is low temperature for a dehumidifier and there
is a risk of a traditional compressor based machine icing up because
the air is cooled inside the dehumidifier until the water vapour
condenses. The lower the ambient temperature the lower the
temperature inside the dehumidifier and the closer to freezing you
get. especially when the ambient air is below 15°C.
The other factor is that compressor based machines extract less
water out of the air the lower the temperature gets. Therefore
a machine that is rated at 16 litres per day at 30°C and 80%rh will
extract about 3 litres per day when used at less than 10°C.
For most applications this will actually be fine and certainly enough to
control the relative humidity to a reasonable level.
So what do you
buy?
If you
do have an application where there is little or no heating only ever
buy a compressor based dehumidifier with HOT GAS DEFROST or a
absorption based machine (see below). The
Mitsubishi Electric machines both have hot gas defrost, a
special low temperature mode and auto-restart after a power cut, and
can therefore be left unattended.
The
Meaco X-Dry,
Meaco
DD122FW and the
Prem-I-Air PRDHZ80U are absorption based dehumidifiers. This
means that they have no compressor to freeze up in the first place.
This makes them quieter, lighter and cheaper. They will
extract a consistent amount of water (between 6 and 10 litres a day)
regardless of the temperature and is therefore more efficient at low
temperature than the two compressor models. The
X-Dry
and the
DD122FW both have auto-restart functions after a power cut, the
Prem-I-Air PRDHZ80U would have to re-started manually after a power
cut, this is a consideration, especially if you are going to leave
it on a boat.
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All
shop prices INCLUDE VAT.
Meaco (U.K.) Limited are the
leading supplier of
dehumidifiers,
portable
air conditioning,
electric
heating,
oil filled
radiators,
storage
heaters,
,
central
heating, towel rails and valves, to control
relative humidity,
condensation, mould, moisture, temperature
and damp. By controlling damp and excess moisture you
can control allergic reactions,
click
here to learn more.
Our guides to air conditioners can be found
here,
including a simple
cooling
calculator, for help in
sizing
an air conditioner please click here.
Customers close to us in Guildford are welcome to call in to
discuss their requirements for cooling.
Our sister company RSKM runs www.buyaswatch.co.uk
and www.buyasekonda.co.uk
 
For
details on how to recycle your old machines please click here.
Terms
of sale.
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