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DEHUMIDIFIERS BUYING GUIDE

Dehumidifiers buying guide

TOP DEHUMIDIFIERS TIPS

We have a wide range of dehumidifiers, including models from top brands. Whether you are after a dessicant, compressor,low energy or a smart WiFi enabled dehumidfier we have everything you need right here. We know it can be hard choosing a particular product, so we have put together a guide which will help you understand what features to keep an eye out for and what type of dehumidifier is fit for purpose. The guide aims to assist you in making the right choice.

TOP DEHUMIDIFIERS TIPS

We have a wide range of dehumidifiers, including models from top brands. Whether you are after a dessicant, compressor,low energy or a smart WiFi enabled dehumidfier we have everything you need right here. We know it can be hard choosing a particular product, so we have put together a guide which will help you understand what features to keep an eye out for and what type of dehumidifier is fit for purpose. The guide aims to assist you in making the right choice.

REASONS TO BUY

Laundry

Ever wondered where the water goes when you dry your clothes indoors? Without a Dehumidifier this ends up in the Walls, Ceiling and Floor leading to possible problems down the line.

Damp

Damp is generated through everyday tasks such as breathing, cooking, showering & cleaning. Dehumidifiers collect excess moisture from the air stopping it from settling on walls & ceilings causing damp. Using a dehumidifier can help tackle any additional moisture, leaving you with a clean environment.

Minor Flooding

After a minor flooding, the use of a dehumidifier is vital as it saves you from the hassle of further damage. This could include damage to of books, damage of electrical instruments, warped doors, ceilings and peeling wallpaper and corroded metal.

Allergies

Ever wondered where the water goes when you dry your clothes indoors? Without a Dehumidifier this ends up in the Walls, Ceiling and Floor leading to possible problems down the line.

Reduced costs

The use of a dehumidifier makes your home feel warmer which means you can turn down your central heating thermostat, saving you money throughout the year. Your home will require less energy to heat the air as moist air requires more energy to heat. A tumble dryer costs a whooping 31p an hour to run, whereas a dehumidifier costs less than 5p an hour to run!

TYPES OF DEHUMIDIFIERS

On the market you will find a few types of dehumidifiers; desiccant, compressor, low energy, mini and commercial dehumidifiers.

Desiccant » Compressor » Low Energy » Mini » Commercial »

DESICCANT DEHUMIDIFIERS

Buying a Desiccant Dehumidifier give you several advantages over other types including:

  • • Low Temperatures – They operate in temperature range of 1-30 degrees meaning they are just as useful in the garage as they are in your home
  • • Quiet – These are very quiet so they are perfect for areas where quiet operation is required such as child rooms and bedrooms. Despite being very quiet. They are very useful in high humidity areas such as kitchens, bathrooms or even the hallway adjacent to the bathroom.

See our recommended desiccant dehumidifiers below to help you choose the right one to suit your needs.

Desiccant Dehumidifiers

• Capacity: 0.48L
• Drawers and Wardrobes

SAVE 50%
£14.97

• Capacity: 6L
• Up to 4 bedrooms

SAVE 20%
£119.98

• Capacity: 8L
• Up to 5 bedrooms

SAVE 28%
£129.97

• Capacity: 8L
• Up to 5 Bedrooms

SAVE 30%
£209.98
 

COMPRESSOR DEHUMIDIFIERS

Buying a Compressor Dehumidifier gives you several advantages over other types including:

  • • Durable, Powerful and Effective – They are powerful and durable when it comes to extracting additional moisture from normal heated properties
  • • It works effectively where rooms are the room temperature of 10-15 degrees Celsius.

See our recommended compressor dehumidifiers below to help you choose the right one to suit your needs.

Compressor Dehumidifiers

• Capacity: 10L
• 2-3 Bedrooms

SAVE 45%
£99.97

• Capacity: 10L
• Up to 3 Bedrooms

SAVE 38%
£79.97

• Capacity: 20L
• Up to 5 Bedrooms

SAVE 24%
£129.97

• Capacity: 90L
• Large Areas

SAVE 34%
£529.98
 

THINGS TO CONSIDER

LAUNDRY MODE
LAUNDRY MODE

Some dehumidifiers have a laundry setting that can quickly dry clothes. This can work out cheaper than a tumble dryer as it uses less electricity which would mean you save £££'s on your utility bills!.

HUMIDISTAT
HUMIDISTAT

A humidistat is a perfect power saving option which gives you the control so you are cutting down on energy bills. This handy feature also enables you to ensure that the humidity is perfect and not too dry!

WIFI/APP CONTROL
WIFI/APP CONTROL

Our app is vital when it comes to remotely monitoring kids rooms or even other properties, cars and holiday homes. It also allows you to create schedules for whenever you need to start the unit.

AUTOMATIC SHUT DOWN
AUTOMATIC SHUT DOWN

This important feature sees the dehumidifier automatically shut down when the water tank is danger of overfilling. Some models have indicator lights to show when the tank is full.

ANTIBACTERIAL/HEPA FILTERS
ANTIBACTERIAL/HEPA FILTERS

These filters are perfect to capture contaminants such as dust mites, allergens and dust. Most our units are supplied with carbon/HEPA filters or you could buy the filters to give you a breath of fresh air!

CONTINUOUS DRAINAGE SYSTEM
CONTINUOUS DRAINAGE SYSTEM

Buying a dehumidifier with a built-in hose for continuous drainage can be very convenient than emptying the tank manually. This is a handy feature if you plan to run your device around the clock.

FAQS FOR DEHUMIDIFIERS

» How do dehumidifiers work?

Dehumidifiers are electric appliances that reduce the humidity level in an enclosed space. A dehumidifier extracts moisture from the air to decrease humidity levels.

Too much moisture in the air can create an unhealthy environment and cause a range of issues including condensation, damp, bad odours and mould. They can also increase utility bills as you will require more energy to heat the moist air. Furthermore, it could cause damage to your furniture.

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» How often should I change the filters on my dehumidifiers?

It’s an easy process to remove/clean/change the filters. Make sure you regularly clean the filter so it doesn’t get clogged. Just like a vacuum cleaner, a dirty filter reduces the effectiveness of a dehumidifier. Make sure you check the manufacturer’s instructions on how to safely clean the filter first though.

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» Where does the moisture come from?

The moisture in your home comes from a range of sources such as cooking, washing machines and dishwashers, drying clothes and even just breathing!

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» Do I need a dehumidifier?

If you often see the signs of excessive humidity such as excessive condensation on windows and mould patches on walls then it is likely that there is excessive moisture in the air. This excessive moisture can cause damage to wooden windows, wallpaper and fabrics within your home and allow unhealthy mould to grow. Excessive damp is often a problem with basements due to the reduced air flow. Garages can also suffer from damp that will cause cars and tools to rust. A dehumidifier will remove the excess moisture and help prevent these problems.

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» What is relative humidity?

Relative humidity is a measure of how much water is in the air relative to the amount that air could hold if it was saturated. Relative humidity is expressed as a percentage. When relative humidity reaches 100% it is at the "dew point". In other words the air is "full" of water and that water will start to condense onto any surface. Warm air holds more water than cool air so as air cools relative humidity rises even though the physical quantity remains constant.

For every fall in temperature of 20°F/10°C the capacity of the air to hold water is halved. For example air at 80°F with a relative humidity of 50% will reach the dew point, 100% RH when it has cooled to 60°F.

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» Why am I only getting a lot of condensation / damp appearing in certain rooms?

Moisture condenses on the coldest surfaces: therefore although the humidity level may be high throughout your property, it will tend to condense on cold surfaces, typically windows or on the walls in rooms that are either North or East facing, rarely used unheated rooms, or rooms that are the only ones to have external walls. A desiccant dehumidifier is ideal for these conditions as they extract moisture at a constant irrespective of temperature whereas compressor dehumidifiers work best in warmer temperatures.

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» Where should I place my dehumidifier?

If it is the first time using a dehumidifier then it would be best practice to extract additional moisture, one room at a time. Once this process is complete, place it in a central position with doors slightly open to ensure it captures all the excess moisture. Also, Dehumidifiers rely on an unobstructed airflow to maximise their effectiveness. While some have vents on the top, most have them on the back. This means there needs to be a space between the dehumidifier and the wall. We recommended at least six inches around the dehumidifier.

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» Does the desiccant material in desiccant dehumidifiers need to be topped up / replaced?

No. The desiccant material does not expire and does not need to be topped up or replaced: desiccant dehumidifiers use a desiccant material, typically Zeolite, which absorbs water vapour from the air in a similar way to silica gel. A fan draws air into the dehumidifier and passes it through a section of a slowly rotating wheel which holds desiccant which dries the air.

The moisture is extracted from the desiccant unit by heating a portion of the wheel not being used to dry the air. At this point the moisture immediately drips out of the Zeolite and the process starts again.

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» What is the ideal humidity level for my home?

Generally a relative humidity of 50% is comfortable for your home. This will protect your home and belongings, prevent mould growth and control the dust mite population. There is no real need to reduce humidity below the 45-50% mark. To do so will simply cost more in energy while serving no useful purpose.

The moisture is extracted from the desiccant unit by heating a portion of the wheel not being used to dry the air. At this point the moisture immediately drips out of the Zeolite and the process starts again.

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» What is the best dehumidifier unit for drying laundry?

If you dry your laundry in a very warm room, a powerful 20 litre compressor unit will be suitable. If you dry laundry in your kitchen, living room or spare bedroom then a desiccant unit will be a much better choice. Some desiccant units have a laundry function on them and remember that a desiccant unit will be blowing warm, dry air over your laundry as well as sucking the moisture out of your laundry.

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» What is the best dehumidifier unit for use in a motorhome / caravan?

A desiccant unit rated at around 7 litres per day will be best as is it will work as well in cool conditions as well as warm. Desiccant units are designed to run unattended for long periods of time in remote areas. They are supplied with a continuous drain option, as well as being able to collect in the tank, and are fitted with auto restart which means they do not need to be reset after a power cut, and can be left running on a plug timer if desired.

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» What is the best dehumidifier unit for use on a boat?

A desiccant unit rated at around 7 litres per day will be best as is it will work as well in cool conditions as well as warm.

Desiccant units are designed to run unattended for long periods of time in remote areas. They are supplied with a continuous drain option, as well as being able to collect in the tank, and are fitted with auto restart which means they do not need to be reset after a power cut, and can be left running on a plug timer.

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» What is the best dehumidifier unit for a garage?

Garages tend to be unheated therefore a desiccant unit is best as they extract moisture at a constant irrespective of temperature whereas compressor dehumidifiers only work well in warm (20+ degrees centigrade) temperatures. Furthermore, a desiccant can reduce humidity to as low as 40% which is below the rusting point of metal – making them ideal for storing machinery or tools. Desiccant units are designed to run unattended for long periods of time in remote areas. They are supplied with a continuous drain option, as well as being able to collect in the tank, and are fitted with auto restart which means they do not need to be reset after a power cut, and can be left running on a plug timer if desired.

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» What is the best dehumidifier unit for a cellar?

Cellars tend to be quite cold therefore a desiccant unit is best as they extract moisture at a constant irrespective of temperature whereas compressor dehumidifiers only work well in warm (20+ degrees centigrade) temperatures. Desiccant units are designed to run unattended for long periods of time in remote areas. They are supplied with a continuous drain option, as well as being able to collect in the tank, and are fitted with auto restart which means they do not need to be reset after a power cut, and can be left running on a plug timer if desired.

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» Can a dehumidifier help control or relieve my allergy symptoms?

Yes they can, some of our dehumidifier are fitted with HEPA filters which can extract mould, dust and bacteria out of the air to help with allergies and irritations.

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» How much does a dehumidifier cost to run?

This all depends on the product. On our site we offer a range of low energy dehumidifiers ensuring it doesn’t cost you a fortune to run. Also do not forget they can reduce your heating bills!

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» How does a dehumidifier prevent mould and mildew?

It removes excess moisture out of the air, walls and floors stopping mould and mildew reappearing.

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» How do I stop mould from growing or mildew from forming?

Mould will not grow in humidity below 60% RH (Relative Humidity). By running a dehumidifier set to maintain humidity at 55% or lower so mould will not grow. Easy solution, buy a dehumidifier and keep mould at bay.

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» How do I know how big of a dehumidifier I need?

This all depend on how big your room size is and how much moisture you need to remove from the air. All our dehumidifiers on our site explain how much water can be extracted per day and where it is perfect for and what room size it will work well in.

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» Where does the water come from?

Water is in the air everywhere. Certain activities in the home can increase the amount of moisture in the air including cooking, washing, showering and drying clothes in the house. Dehumidifiers help to reduce the amount of moisture/water in the air.

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» How long will it take to get the moisture under control?

As long as the dehumidifier you choose is large enough for the area it is working in, and there are no specific damp problems, then a dehumidifier will normally reduce the humidity to the chosen level within a few days to a week. This timescale does not apply if the room has been flooded, in which case one or more dehumidifiers will be needed and possibly supplemented by air movers and other specialist equipment. This work is usually undertaken by specialised water damage specialists.

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» How much water does a dehumidifier remove?

This depends on the dehumidifier type and size. For example a 10 litres manufacturer rated compressor dehumidifier will extract around 3-5 litres in normal domestic conditions in 24 hours depending of the relative humidity and temperature. A typical 8 litres desiccant will extract 7-8 litres in the same conditions being less sensitive to temperature variations. Once the dehumidifier is regularly used and the humidity has been reduced the amount of water removed daily will stay at a constant level.

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» Can I use the water that collects in the bucket?

The water collected in the dehumidifiers tank is called condensate, you can use this in your iron or to water the plants! However, it should not be drunk by humans or animals as it may contain traces of substances that could make you, your pets ill.

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» What is Continuous Drainage?

All portable dehumidifiers have a water collection container, often called a tank or a bucket, to collect the water extracted from the air. These buckets are quite small, to keep the overall size of the dehumidifier down, and need to be emptied at least once a day. Because it may not be convenient, or possible, to empty the bucket daily almost all portable dehumidifiers for home use are designed to allow the water to be drained directly as it is collected. This is known as continuous drainage. In the casing of the dehumidifier a small hole has been cut to allow a small hose (most of our units come with this hose in the box) to be attached to the dehumidifier through which the water can be drained. The water is drained by gravity alone so for effective continuous drainage the dehumidifier needs to be raised a foot or two above the floor and the hose run to a floor level drain.

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» Are dehumidifiers expensive to run?

Most domestic dehumidifiers will consume between 180 and 660 watts per hour – this equates to between 2 and 7 pence per hour at 2015 domestic energy prices. Bear in mind that the drier the air, the quicker the air will warm up when your heating is on. Therefore during the winter months the running cost of your dehumidifier will tend to be more than offset by the saving on your heating bill.

Used correctly, dehumidifiers can be a much more economical option for drying laundry than a tumble dryer. The latest energy efficient tumble dryers use at least 2500 watts per 120 minute cycle compared to an average of 880 watts for a desiccant dehumidifier for the same amount of time.

Consider that a desiccant dehumidifier positioned next to or below a clothes maiden will not only draw the moisture from the clothes but also blow warm, dry air over your clothes, drying them quickly – and there is no chance of your clothes being damaged in the process.

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» Why does the dehumidifier extract less water than 10L that it’s rated?

For example a 10 litres manufacturer rated compressor dehumidifier will extract around 3-5 litres in normal domestic conditions in 24 hours depending of the relative humidity and temperature. A typical 8 litres desiccant will extract 7-8 litres in the same conditions being less sensitive to temperature variations. Once the dehumidifier is regularly used and the humidity has been reduced the amount of water removed daily will stay at a constant level.

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» Still have questions?

We know choosing a dehumidifier isn't an easy decision. Not sure what's best for you? We can take the guesswork out of decision-making. Call us at 0871 984 4416. We want to help make your indoors healthy and comfortable.

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LOW ENERGY DEHUMIDIFIERS

Low energy dehumidifiers are great if you want to make further savings on your utility bills. But do not forget a dehumidifier will be contributing in helping you save money as it will use less energy to heat your home! See the guide below to help you choose the right dehumidifier so you can start saving now! A low energy dehumidifier could save you 1000s of pounds as they cost as little as 2p an hour to run!

Low Energy Dehumidifiers

• Capacity: 12L
• Up to 3 Bedrooms

SAVE 22%
£139.95

• Capacity: 12L
• Up to 3 Bedrooms

SAVE 25%
£149.97

• Capacity: 20L
• 2-5 Bedrooms

SAVE 32%
£169.97

• Capacity: 20L
• 2-5 Bedrooms

SAVE 28%
£179.97
 

MINI DEHUMIDIFIERS

These are a handy tool if you need to ensure you keep places such as drawers, cupboards, wardrobes and storage boxes in check as this will help protect your clothes and furnishings. See our guide below to help you choose the right mini dehumidifier to protect those tiny places.

Mini Dehumidifiers

• Capacity: 500ML
• Caravans and Boats

SAVE 58%
£24.97

• Capacity: 1.5L
• Caravans and Boats

SAVE 50%
£34.97

• Capacity: 2L
• Caravans and Boats

SAVE 43%
£39.97

• Capacity: 2L
• Caravans and Boats

SAVE 47%
£34.98
 

COMMERICAL/INDUSTRIAL DEHUMIDIFIERS

Commercial dehumidifiers are perfect for those large areas such as offices, factories, warehouses and much more. Situations with ongoing moisture needs could be in commercial settings prone to moisture exposure or in which infrastructure or goods become compromised with moisture exposure, such as food storage or production. Below we have chosen a few commercial dehumidifiers to help you make the right choice.

Commercial Dehumidifiers

• Capacity: 30L
• Large Areas

SAVE 28%
£179.98

• Capacity: 45L
• Large Areas

SAVE 33%
£199.98

• Capacity: 50L
• Commercial Areas

SAVE 9%
£849.97

• Capacity: 60L
• Large Areas

SAVE 14%
£859.98
 
 
 
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