Dehumidifier Extraction Rates Explained

The Ebac guide to the different types of dehumidifier
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Extraction rates of dehumidifiers are confusing...

The figures quoted by all manufacturers do not apply to UK conditions.

The 10, 12, 15, 18, 20, 25 litre ratings refer to tropical conditions not found in the UK.

In the UK a dehumidifier needs to remove around 1 to 2.5 litres per day to solve damp and condensation problems.

How do we translate the tropic extraction rates quoted to the UK equivalent extraction rates

For many years, one of the key factors when comparing dehumidifiers has been published extraction rates - often ranging from 12 – 25 litres extraction per day. However these figures are misleading.

The requirement for most homes in the UK is 1 to 2.5 litres of water extraction per day.

In order to achieve 12+ litres extraction per day, the dehumidifier would need to be used in a tropical swamp.

These tropical conditions - where the amount of water extracted is very high – are not found in the UK.

The amount of water removed by a dehumidifier in a UK home will be much lower than the headline rating.

However since less water needs to be removed, Ebac dehumidifiers will solve the problem.

The following table shows you the relationship between Tropical Conditions, UK Conditions and the dehumidifier rating you need.

Household size 1
Person
2
People
3
People
4
People
5+
People
UK Conditions Extraction Rate 1
litre
1.25
litre
1.5
litre
2
litre
2.5
litre
Tropical Conditions extraction rate 12
litre
15
litre
18
litre
20
litre
25
litre

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