Garage Dehumidifiers

Garage Dehumidifiers

Prevent condensation, mould, rust & corrosion

National Heater Shops has a great range of dehumidifiers for garages available. Whether you need a dehumidifier for a domestic garage or an industrial garage, we can offer a suitable machine.

The Benefits of a Garage Dehumidifier

Using a dehumidifier in a garage to extract moisture from the air has a number of key benefits:

• Prevent condensation, damp & mould

Garages can be quite cold and damp spaces. Moisture often struggles to escape garages due to a lack of ventilation. This moisture builds up as humidity within the space and when temperatures drop during the night it condenses on to cold surfaces. High relative humidity levels can also lead to damp, mildew and mould, which cause structural issues and present a health hazard.

• Prevent rust & corrosion

If you use your garage to store cars or workshop machinery and equipment, high relative humidity can cause rust and corrosion to develop. Keeping the relative humidity at around 45%-50% helps to prevent expensive damage to car bodywork, tools and machinery.

• Prevent moisture damage to items in storage

Many people use their garage as a storage space to reduce clutter in the house or garden. High relative humidity causes moisture damage to documents, photographs, furniture and other items stored within the space. Using a dehumidifier helps to prevent moisture damage to stored items.

Do dehumidifiers work in a garage?

A dehumidifier will work effectively in a garage so long as it is an appropriate dehumidifier for the space.

Size

The dehumidifier needs to be the right size for the space. If the unit is too small, it will not have the capacity to extract enough moisture to control the relative humidity within the garage. If you have a large garage, you will need a large capacity dehumidifier.

Operating Temperature Range

Garages are often cold, unheated spaces. Refrigerant dehumidifiers work best in heated spaces, around 15 degrees or more. High quality models work down to around 5 degrees, however they are much less effective. In cold unheated spaces, a desiccant dehumidifier works best.

Drainage

Most portable dehumidifiers have a water collection tank. When this becomes full, the dehumidifier will switch off in order to prevent overflowing and you will need to empty the tank.

If you need a dehumidifier to operate consistently to control the relative humidity in your garage, it is best to use a dehumidifier with continuous drainage. Wall mounted dehumidifiers or portable dehumidifiers with a condensate pump offer the best solution for this.

What kind of dehumidifier do I need for my garage?

Which dehumidifier you need depends mainly on whether you have a heated or unheated garage.

Compressor or Desiccant?

Compressor dehumidifiers work best in spaces with heating, where the temperature is generally above 15°C. Though higher quality models can work down to around 5°. Refrigerant models become less efficient in colder conditions.

Desiccant dehumidifiers can work effectively in much colder temperatures, even below freezing. These units are great for managing humidity levels in colder, unheated spaces.

If your garage has heating, a compressor dehumidifier offers a great solution. If your garage is unheated, a desiccant dehumidifier offers the best option.

Portable or Fixed Dehumidifier?

Another consideration is whether you need a portable or fixed dehumidifier.

Portable dehumidifiers work well for most applications in garages. They can be moved around easily and put into storage when not required, such as during summer months. Some of the most popular portable units for garages are the Ebac CD35 and the Master DH 732.

Fixed dehumidifiers can be installed against a wall and used to control relative humidity levels consistently within the space. This is great for consistently controlling humidity levels in garages, to prevent mould, mildew, damp, corrosion and moisture damage. Popular models include the Aerial AD110 and Calorex DH 30.

Desiccant dehumidifiers such as the Ecor Pro DH800 and DH1200 can be used as portable or fixed dehumidifiers. They can be screwed on to a wall quickly and easily. A hole can be drilled through the wall to allow the wet exhaust air to be vented outside. This setup allows for continuous operation of the dehumidifier.