Dehumidifiers

Dehumidifiers For Sale

The best dehumidifier deals to beat moisture issues

Dehumidifiers are drying equipment which extract moisture from the air. They are available in a range of sizes and configurations, with a selection of features, suited to different drying applications.

We offer everything from compact home dehumidifiers for bedrooms, bathrooms, garages and basements, to commercial machines for shops, offices, storage rooms, kitchens, drying rooms and more. We also have a fantastic selection of industrial units for spaces such as workshops, warehouses and factories.

What Does a Dehumidifier Do?

A dehumidifier is an air conditioning device that removes the excess moisture from the air within a space. The most common use is to promote a healthy atmosphere for occupants, buildings, and contents in wet and humid environments. They achieve this by preventing damp, which can result in mould and decay. But, they are versatile machines that can also be helpful for many other applications.

How Does a Dehumidifier Work?

A dehumidifier draws in the ambient air from a space using a fan and then passes it through a system designed to extract the excess moisture. Following this, an integral fan reintroduces the dried air back into the space for recycling. Sometimes filaments heat the air before it is expelled from the dehumidifier. The particular way dehumidifiers extract moisture from the air depends on the type of technology. There are two main types - desiccant and compressor.

Desiccant

Desiccant dehumidifiers use a reticulated mesh of absorbent material on a rotary wheel. For example, imagine a sheet made of silica gel in the little bags when you buy new clothes. As the ambient air is drawn in from a space, the stream passes through the desiccant wheel so that any moisture is absorbed. As the desiccant wheel turns and collects water, dry air is blown back into the space while the moisture expels separately. Usually, an exhaust that leads somewhere outside the area or to a drainage system disposes of the moisture. Desiccant dehumidifiers can also heat the air and collect moisture condensate in an integral water tank. 

Compressor

A compressor dehumidifier - often referred to as refrigerant, or condensation - uses a system of heating and cooling coils. As damp, ambient air draws in, it passes through the refrigerant coil (evaporator) to lower its temperature to below its dew point. The moisture condensates upon contact with a cold surface, and a large portion of the water drips into a collection tank or drainage system. The second coil (condenser) reheats the remaining condensate to turn back into a gas that can be blown back into the space via an integral fan.

Do Dehumidifiers Work?

Yes, dehumidifiers do work. But, desiccants and compressor achieve their results in different ways. Considering this, they are more efficient and effective in different circumstances. In specific spaces, one type of dehumidifier might be more suitable than the other. 

How to Use a Dehumidifier

Generally, dehumidifiers are plug and play pieces of equipment. You can easily integrate one into any space, and straightforward to run. However, there are a few things to consider to ensure that you are getting the most out of them and working to their full potential.

• Choose the correct type for your space. 

Desiccant dehumidifiers and refrigerant dehumidifiers work differently and are effective in different ways. For example, desiccant dehumidifiers are more efficient in lower temperatures because they do not rely on cooling the air the remove the moisture. On the other hand, refrigerant dehumidifiers are most efficient in areas of typical living temperatures, like living rooms, bedrooms, offices, etc.

• Choose the right size for your room.

Dehumidifiers come in many different sizes and with varying extraction capacities. Most manufacturers will include the appropriate square footage in the specs, which you should use for reference. Measure the size of your room and match it with the size of your dehumidifier. If the area has particularly high humidity levels, you can discuss your options with your retailer.

• Choose the right model for the application.

There are dehumidifiers designed for specific purposes. They can be intended for use in pool areas, spas, construction sites, etc. You can even get a boat dehumidifier that thrives in marine environments. Always use the correct type of dehumidifier to match a particular job.

• Place your unit in the most efficient position.

If you are using a portable dehumidifier, you should try to place it as close to the centre of the room as possible. This helps maximise the airflow and the efficiency of the dehumidifier. If it is not appropriate to have equipment in the centre of the room, ensure the unit has good airflow all around it. You do not want to place your dehumidifier too close to furniture and walls.

• Allow the proper time for it to work.

Dehumidifiers have a capacity based on an extraction rate within 24 hours. Therefore, allow your appliance the time to run long enough to remove the necessary level of moisture.

Benefits of Dehumidifier Use

Dehumidifiers reduce the humidity levels and excess moisture within a space. This can improve the quality and comfort level of the area and also:

1. Ensures that the site is less likely to contain allergens, such as dust mites, pollen, and dander.
2. Reduces the chance of water damage, including rot, mildew, mould, and frost damage.
3. Reduces the unpleasant odours caused by excess or residual water.
4. Contributes to better quality air that does not have adverse effects on your health, such as skin irritation and respiratory problems.

Disadvantages of a Dehumidifier

There are a few disadvantages to having a dehumidifier:

1. They reduce the effects of humidity but do not address the cause of the problem.
2. They are electrical pieces of equipment that consume energy and will increase your utility bills.
3. They can need regular maintenance, cleaning, and you must empty their water tanks.

Do I Need to Dehumidify My Space?

Whether you choose to use a dehumidifier if you are thinking about using one at home, work, or anywhere else, it is up to you. In a space, there are a few things that could signify that you could enjoy using a dehumidifier:

• There are damp or watermarks present on walls or ceilings.

• Wallpaper is peeling from the walls.

• The space is unpleasantly stuffy.

• There are high humidity levels and poor ventilation.

• Condensation frequently covers windows.

• There is a musty or stale odour present.

• There is visible mildew or mould.

These are signs that suggest that you might need a dehumidifier. They can occur in any room, especially areas with high levels of humidity, like laundry rooms, bathrooms, and kitchens. You might also need a dehumidifying unit if you have equipment that adds moisture to the air. You can also use them to reduce the drying times of painting and decorating jobs, drying worksites after poor weather, restoration following water damage, or for a watercraft or a building near water, like a lighthouse or shipyard.

We have both refrigerant, desiccant models available in huge range of sizes, including portable, fixed wall-mounted, and low-grain units. Take a look at our range on our website and contact our sales team for more information. You can even shop by application to view the best machine for your needs.

Related categories: Air Purifiers, Electric Heaters, Air Movers.