Best Dehumidifiers 2024

Most houses in the UK are prone to damp, humid conditions at some time or another. Usually in winter when the central heating is on and the windows are shut tight. You might not notice the moisture or if you do, you might not think it’s a problem, but damp moist atmospheres can cause serious problems.

Best Selling Dehumidifier UK

SaleBestseller No. 1
ELECCI 12L/Day Dehumidifier for Home with Digital Humidity Display, Sleep Mode, Laundry Drying, Eco-friendly, 24 Hour Timer, 1.4L Tank Capacity, Universal Wheels, Dehumidifier for Drying Clothes
  • EFFICIENT DEHUMIDIFICATION: ELECCI dehumidifier efficiently removes moisture up to 30 pints in a room covering up to 1500 sq. ft (under RH90% @ 86℉ condition). With the humidity setting ranging from RH40% to RH80% and CO (Continuous Operation), it serves not only as a small dehumidifier for basements, but also a dehumidifier for bedrooms, living rooms, offices, kitchens, bathrooms, laundries, sheds and tiny houses. Just get room humidity under your control!
  • 4 OPTIONAL MODES: ELECCI dehumidifier for home features four humidity modes, effectively meeting your diverse needs for dehumidification. Simply short press the MODE button and then the HUMIDITY button to customize your ideal humidity from RH40% to RH80% and CO (Continuous Operation) under STANDARD mode, or switch to another mode (DRYING mode with automatic CO status, RAINING and SLEEP mode respectively with default target humidity of RH45% and RH50%). Press and select as you please.
SaleBestseller No. 2
ANSIO Dehumidifier 500ml Pack of 10 Condensation Remover Moisture Absorber Dehumidifiers for Damp, Mould, Moisture in Home, Kitchen, Wardrobe, Bedroom, Caravan, Office, Garage, Bathroom, Basement
  • DAMPNESS / HUMIDITY REMOVER: Ansio Interior Dehumidifiers are designed to remove dampness & humidity from the air. For domestic purposes only.
  • EFFECTIVE IN REMOVING DAMPNESS: These disposable Dehumidifier tubs contain unique hydrophilic crystals that are specifically formulated to draw and retain moisture from the air. This helps combat condensation, damp rooms, allergens in the air, mould, mildew and neutralises odours. The dehumidifier tubs act as good condensation absorbers for windows.
Bestseller No. 3
20L/Day Home Dehumidifier, Removes Condensation, Humidity, Damp, Moisture & Purifies Air Quality. Clothes Drying, Continues Drainage, Auto-Off, 24 Hours Timer for Homes, Offices, Basements, Laundry
  • EXTRACT UP TO 20L OF MOISTURE DAILY: With a powerful dehumidification capacity of 20L per day, this portable unit ensures improved air quality and a healthy environment in areas spanning 20-30M (250sqft – 360 sqft). It effectively removes excess moisture, making spaces comfortable and free from dampness.
  • AUTOMATIC SAFETY FEATURES: When its 6.5L tank is full, the dehumidifier automatically shuts off for safety. This feature ensures hassle-free operation without the risk of overflow. Moreover, the machine boasts an automatic defrosting function, enhancing its efficiency and lifespan.
Bestseller No. 4
BAPHIYA Dehumidifier for Home Damp with 2.5L Tank, Low Energy Auto Dehumidify Quiet Small Dehumidifier with Digital T& H Display/Anion/Photocatalyst/Auto Defrost, Perfect for Wardrobe
  • 【2.5L Removeable Tank】The dehumidifier is desigened with a 2.5L large tank, to avoid pour of water frequently ; There is a hole reserved on the tank for pouring the water without opening the lid.
  • 【Easy to use by one button】 Turn on or off the auto dehumidification by short pressing the power button; Turn on the negative ion generator and photocatalyst purification by long pressing the power button. The machine will defrost automaticly in low temperature, and automatic stop when the water is full;
SaleBestseller No. 5
Daewoo Capacity Room Dehumidifier with LED Power Indicator, 12 Litre
  • HIGH MOISTURE REMOVAL – Effectively extracts 12-litres of excess moisture per day, the 2-litre water tank ensures extended operation without frequent emptying or connect the hose for continuous drainage, ideal for long-term operation and unattended use
  • IMPROVED AIR QUALITY – Reduce mold, musty odors and promote cleaner, fresher air in rooms ranging from 15-25M² such as living rooms, bedrooms, a home office and more. Adjust the humidity and set to your desired level for precise moisture regulation

How To Identify Moisture Issues

If you have dark patches, damp stains, or even condensation that continuously reappear even after washing, on your windows chances are you have excessive moisture in your home. The air will feel heavy, damp, cold, and it can make breathing a bit of a struggle.

Health Issues Associated With Damp Homes

Apart from the stains and damage that damp can cause there are potentially life-threatening conditions that are either caused by or aggravated by damp conditions. Damp conditions are the perfect breeding ground for many types of bacteria and allergens. Mould, dust mites and other bacteria can cause many problems for your health.

From serious breathing problems like asthma and bronchial problems to less harmful but annoying and uncomfortable skin allergies. To make your home feel more comfortable, and to ensure you are living in a healthy environment, we would suggest you consider buying a dehumidifier.

How Does A Dehumidifier Work?

Room

Humidifiers work by drawing the moist air from the room, then removing the moisture and returning the dry air back into the room. There are 3 main types of dehumidifier, they all do the same job but in different ways.

Refrigerant Or Compressor Dehumidifier

These are usually the largest type of dehumidifier, the best way to describe this type of dehumidifier is to look at a refrigerator. Because it works in the same way, by drawing air in and passing it other a refrigerated coil. The air cools and condenses thus removing the moisture.

Thermoelectric Or Peltier Dehumidifier

This one works by passing electrical voltage across 2 different metals to create a temperature difference. Warm, moist, humid air is drawn into the dehumidifier through a grill at the front. This warm air is met by a cold heat sink unit. The air then condenses onto the cold heatsink and the water drops down into a reservoir below.

The air is then pulled past a hot heat sink and expelled from the dehumidifier as warm, dry air. So it’s a thermoelectrical process discovered by J C Peltier in the 1800s and is known by either name today.

Desiccant Dehumidifiers

There are 3 main types of desiccant dehumidifiers but they all use a similar process to extract moisture from the air. They work by using a chemical desiccant to trap the moisture in the unit. Let’s look at them in more detail.

Disposable Desiccant Dehumidifiers

These are very cheap as they have no moving parts at all and can only be used once. They comprise of a bottom tray full of the desiccant chemical, and a top trap with a grill. It is a sealed unit and once the desiccant is full of moisture the whole unit has to be discarded and replaced. They are also very small and have a limited effect on moisture levels.

Rechargeable Desiccant Dehumidifiers

These units are also small and relatively cheap and work in a power-free way. The way these work is by adsorbing the moisture no, that’s not a typo, the technical term for this process is adsorption, not absorption. It comprises of a silica gel encompassed inside a plastic container peppered with holes to allow the moisture in.

Once the silica gel is full of moisture an indicator usually a colour change notifies you and then you need to recharge the device. This is done by plugging it in and the electricity dispels the moisture trapped in the silica gel which can then be reused. Recharge the unit outdoors or in another room so as not to re-introduce the moisture back into the room it was removed from.

Full-Size Electric Desiccant Dehumidifiers

These look like refrigerant or Peltier dehumidifiers at first glance, as they are full-size units powered by electricity. Although less powerful than the other electric types, and with less moisture removal ability, they are smaller, easier to handle and quieter than the others. However, they can operate in much cooler and much hotter temperatures than their counterparts.

What Size Dehumidifier Should You Buy?

This is very much dependent on the amount of moisture you are trying to remove and the size of the room. Another consideration is the number of people living in your home and how many hours they are at home. Dehumidifiers come in various sizes and are measured by capacity, and rate of moisture that can be removed in 24 hours.

A small averagely sized room will probably be fine with a 5-10 litre capacity dehumidifier if it’s for a bigger room or one more frequently used, you might want to go for a 20-litre model. For small damp areas like cupboards or wardrobes, a disposable desiccant dehumidifier will usually be sufficient.

Chart Depicting Average Capacity Needed For Moderately Damp Rooms

Size of roomCapacity
450 square foot6 ½ litres
900 square foot9 ½ litres
1350 square foot12 ½ litres
1800 square foot15 ½ litres
2250 square foot 18 litres

What Are The Benefits Of A Dehumidifier?

The benefits of a dehumidifier are many and various, some are from a house point of view and others are much more health orientated. A dehumidifier removes damp, moist air from your home. This helps prevent mould, damp stains, wood rot, and protect against further damage.

From a health perspective, the spores connected with mould can have a negative effect on respiratory systems. Especially in the very young and the elderly, but also anyone suffering from asthma, bronchial problems, and skin sensitivity due to dust mites.

What Are The Disadvantages Of A Dehumidifier?

The most obvious disadvantage to using a dehumidifier is the noise, they are pretty noisy when in operation unless you use a disposable desiccant dehumidifier. But they are only suitable for small areas. Dehumidifiers also won’t prevent surfaces like wallpaper and furniture from suffering moisture damage.

Dehumidifiers only deal with the moisture present in the air, they will not fix the underlying problems that are causing the condensation in the first place. Poor insulation, etc need to be treated professionally to control the problem long term.

Do Dehumidifiers Use A Lot Of Electricity?

An average 18-litre dehumidifier will use around as much power as a computer. That’s around 700W which is considerably less electricity than a water heater, an air conditioning unit, and much less than a hairdryer.

Dehumidifier Buyers Guide

Before buying a dehumidifier it’s worth considering the following points:

Which Type Of Humidifier Suits Your Needs

The type of dehumidifier you need is dependent on the size of the room, how many people are using that room, and the level of moisture present.

Size

Some units are larger than others, think about how much space you can allocate to siting a dehumidifier. Remember it will probably be in operation for many hours (depending on how damp your room is) and so that space will be full for some time.

Noise Levels

Many models are nearly silent, others are much noisier. You might prefer the silent type for bedrooms etc. But in a kitchen say, the noise is not so much of an issue.

Laundry

Many people use their radiators to dry washing during the cold, wet winter months. It is possible to buy dehumidifiers with a laundry setting that will actively create airflow over the laundry, very useful for getting clothes dry in a hurry.

Dehumidifier Price

Dehumidifiers range in price from £2 to over £2,000 depending on the type, make and model. You need to assess your needs as well as your budget before making your final decision.

Low-Temperature Setting

Some models incorporate a low-temperature or an auto-defrost setting which is very handy if you are going to operate the machine at low-temperatures.

Humidity Sensor

There are models with the facility to set a humidity level for the unit to turn off automatically once that humidity is reached. It will then automatically cut in again if the humidity rises.

Filter-Full Indicator

As electric dehumidifiers work on airflow, they have an air filter that will need to be cleaned on occasion. Some models have a light that indicates when the filter needs to be cleaned. This might be a feature that works for you.

Automatic Shut Off

When the water reservoir is full, extracted moisture has nowhere to go, most, but not all units have an automatic shut off that detects water levels in the reservoir.

Length Of Cord

This might be an issue if you don’t have many free plug sockets. It’s worth checking where you are going to site your unit and seeing how far from a plug that is.

Drainage Hose

Some models have a reservoir, others have a drainage hose and others have both. The idea of a drainage hose is it never fills the reservoir and therefore doesn’t need to be emptied. If you decide to go for one with a hose, be sure it is long enough to reach a drainage point.

Timer

Some models have 24-hour energy-saving timers, that can be set to start and stop whenever you require.

Remote Operation

Some dehumidifiers have wifi connectivity so they can be operated remotely via a smartphone.

Weight

If you wish to use your dehumidifier in more than one room, it’s best to be sure the unit is not too heavy for your abilities.

Wheels

For ease of manoeuvrability, some units have wheels.  These can really lighten the load when moving the unit from one room to another.

 How Much Does A Dehumidifier Cost?

As we discovered earlier there are many types of dehumidifiers on the market, so quoting prices is complicated. But here goes:

  • Disposable Desiccant Dehumidifiers – These are the cheapest and to be honest, least effective type of dehumidifier and this is reflected in the price. These can be picked up for around £2 which is ok for very small cupboards or wardrobes but not much else.
  • Rechargeable Desiccant Dehumidifiers – Thes aren’t much better than the disposables but at least they can be re-used. They start from around the £5 mark.
  • Full-Size Electric Desiccant Dehumidifiers – These units start at around £140 for a 7-litre model, and rise to around £230 for a top of the range model. These are the most expensive to run.
  • Thermoelectric Or Peltier Dehumidifiers -These start at around £40 for a mini model and rise to around £100 for a larger model.
  • Refrigerant Or Compressor Dehumidifiers -These are the most popular type of dehumidifier and start at around £45 for a portable mini-model, and the most expensive model is around £3,900 which includes an air purifier, intelligent touch control panel, continuous drainage and much more.

You can pick up a reasonably efficient unit for around £100 that will most likely suit your pocket as well as your needs.

Frequently Asked Questions

Will a dehumidifier kill mould?

The removal of all mould spores is almost impossible. The mould spores remain in a state of dormancy when there is no excess moisture for them to grow on. A dehumidifier will not kill mould, but it will prevent it from growing.

 Is it OK to sleep with a dehumidifier on?

There are no health or safety risks with sleeping in the same room as a dehumidifier, but you will need to choose one that runs quietly.

Do dehumidifiers stop condensation?

Dehumidifiers remove excess moisture from the air, this will reduce the dampness and condensation in your home.

Where should I put my dehumidifier in my house?

You should put a dehumidifier in whichever room you have a problem with damp.

Should I leave my dehumidifier on all the time?

Dehumidifiers should only be used when the humidity level is above 50% If you do want to keep your unit running constantly you should choose a unit with a drainage hose.

Should you open windows when using a dehumidifier?

It can be counter-productive to run a dehumidifier with the windows open. This is because damp air can enter through open windows.

Does a dehumidifier make a room warmer?

The exhaust air from a dehumidifier is on average 10-15 degrees warmer than the air that enters the machine.

Is it worth using a dehumidifier?

If you have problems with damp, mould, condensation or excessive dust in your home, buying a dehumidifier is definitely worth it. Plus they are economical to run too.

Does a dehumidifier need to be in the centre of a room?

In large rooms, it is advisable to position the dehumidifier as close to the centre as possible.

Should a dehumidifier be placed on the floor?

Due to the way a dehumidifier works, the lower it is the better. This is because the air leaving the unit will be warmer than the air entering the unit (10-15 degrees warmer on average). So placing the dehumidifier close to the ceiling is going to be counter-productive.

What is the brown stuff in my dehumidifier?

This is more than likely to be mould spores and/or bacteria that have entered the dehumidifier via the damp air. If left unchecked, this brown stuff can cause bad smells to develop from your water reservoir.

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