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10 Things to Consider When Buying commercial ducted dehumidifier

Author: Vic

May. 19, 2025

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Things To Ask Before Buying A Commercial Dehumidifier

Things To Ask Before Buying A Commercial Dehumidifier

A dehumidifier can play a critical role in your business. For example, it can help you create a more pleasant environment, protect you from mold, and make it easier to control the temperature. If you are trying to control the humidity in a larger space, you will often need to choose a more powerful commercial model. But these can be quite expensive, so you want to make sure that you are getting something that is a good fit for your business. To help you do this, here are some of the questions you should ask when looking at commercial dehumidifiers.

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How Large Is The Area You Want To Dehumidify?

The first thing you should consider is how large the area you want to dehumidify is. This will often be measured in cubic square feet. To find this number you will need to multiply the width, the length, and the height of the space.

What Is The Temperature And Humidity Levels?

These elements will determine the type of model you need. For example, if you have a low-temperature space, you will need to be careful of the type of model you use. Sometimes, the coils can get frozen. It’s also a good idea to book a consultation with an expert before you make your final decision. They can examine your space and help you find something that will be able to meet your needs.

What Features Will You Need?

There is a range of features you might want, depending on the type of business you are using. For example, you might want a ducted system, allowing you to control the moisture level in multiple rooms. Alternatively, you might want a remote control or to put sensors into the room, to keep tabs on the humidity levels.

What Brand Will You Be Using?

It’s important to choose a dehumidifier that comes from a trusted provider. This will ensure that you are getting a high-quality product that will last for a long time. Furthermore, you won’t have any problems getting replacement parts.

What Type Of Warranty Is Included?

A commercial dehumidifier is a potentially big expense. Because of this, you want to make sure that you are protected if there are mechanical problems. You might also want to investigate the replacement cost of the parts.

Is Installation Included?

You will need to get a professional to install your dehumidifier, to ensure it operates effectively. Often, this will be done by the same company that sold you the machine, but it’s best to double-check. You should also ask if they will be able to help you service the device.

How Much Noise Does It Make?

The next thing to consider is how loud the device will be. This is especially important if you are running a retail business. The volume of the dehumidifier will be measured in decibels (dBA) and can be found in the product specifications. It should also be noted that the placement of the device can affect how loud it will be.

Conclusion

There are plenty of commercial dehumidifiers available for you to choose from. Hopefully, these options will help you find it easier to narrow down your options and find the ideal one for your business.

The Millin Guide To Choosing A Commercial Dehumidifier

The Millin Guide To Choosing A Commercial Dehumidifier

This month, we’re switching gears a bit and diving into industrial and commercial dehumidifiers — what they are, their features and benefits, and what situations they’re particularly useful (or even necessary) in.

This brief guide will outline what exactly a commercial dehumidifier does, as well as lay out the specifications you should consider when you’re deciding which product to invest in. Let’s get started.

What is an industrial or commercial dehumidifier, and why would you need one?

Like the ones you buy for your home, commercial dehumidifiers work by decreasing the amount of humidity within a space, improving the air quality and minimising the risk of structural damage or health concerns as a result of dampness and mould.

Used for larger spaces such as offices or warehouses, they’re incredibly powerful tools capable of siphoning up to 90 litres of moisture from the air in a single day.

They’re useful for a wide range of industries and applications, from protecting retail stock in damp and drafty warehouses to quickly drying large surfaces of newly applied concrete, plaster, or paint.

How do they work?

Commercial dehumidifiers work by using a compressor to power a condenser and evaporator that in turn remove moisture from an indoor space. Their common features include:

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  • Automatic Defrost: Protects the unit (and your investment) by preventing it from freezing, especially in cold temperatures.
  • Built-in Pump: Improves convenience by directing water to a collection point of your choice (directly outside, sink, container, etc.).
  • Reusable, Washable Filters: Increases the cost-efficiency and sustainability of your dehumidifier.
  • Durable Construction: Because they’re often used in industrial or harsh conditions, commercial dehumidifiers are made of sturdy materials able to withstand considerable use and impact.

Benefits and uses of commercial dehumidifiers

In addition to their durability and convenience, commercial dehumidifiers offer a number of valuable benefits, from health improvements to business protection.

A cost- and energy-efficient way to protect your space from the damaging effects of moisture, they significantly improve the quality of the air you’re breathing — removing harmful dust and pollen that can affect our respiratory systems. They’re also great for preventing mould growth — something that can be a particular problem here in New Zealand — which helps to safeguard the health of you and your employees and to mitigate the risk of costly structural repairs down the line.

Commercial dehumidifiers are excellent for keeping your stock and inventory in pristine condition, helping to regulate temperature and dampness so products such as food, fabrics, metals, and machinery don’t rot or rust. They’re frequently used by professional painters to speed up the drying process and to ensure smooth, quality finishes free from cracks and bubbles.

These useful tools offer dampness and moisture control in large facilities such as supermarkets, restaurants, indoor pools, and storage warehouses. The go-to solution for water damage, they’re often implemented in situations where leaks or floods have caused harm to large-square-footage spaces.

What to consider when you’re purchasing a commercial dehumidifier

It’s critical to consider the location, size, temperature, and humidity of your space when you’re looking into commercial dehumidifiers. These measurements will determine what you need in terms of dehumidifier capacity.

Most industrial dehumidifiers are fitted with uplift pumps that will automatically pump water up to five meters high, making them ideal for basements and below-ground-level applications where collection isn’t practical.

Capacity

When it comes to capacity (how much water a dehumidifier can pull from the air in a given day), you need to consider both the maximum capacity and the AHAM* capacity. Maximum capacity defines the amount of water that can be extracted at 90% humidity or more, whereas AHAM capacity defines the amount at roughly 60% to 70% humidity.

*(AHAM is a term used in the United States and determined by the Association of Home Appliance Manufacturers, but it’s relevant to other markets. A measure of how well a dehumidifier operates at the aforementioned 60% to 70% humidity, it’s typically considered a better indicator of how a given dehumidifier will perform in everyday conditions.)

If you’re looking for a dehumidifier for a particularly damp environment where the relative humidity regularly sits at or above 90%, focus on the appropriate maximum capacity for the size of your space. Otherwise, the AHAM capacity is more important, and it’s stated in the name of the product

Here are some good rules of thumb that can help you determine which size dehumidifier to go with:

50 litres for spaces up to 120 square metres*

90 litres for spaces up to 250 square metres* 

*Please note these figures are general indications. Effective size will vary based on the moisture level, humidity, position of dehumidifier etc

Our range of dehumidifiers includes industry leading brands like Dellaria, Fresca Remington and Haydn

If you do not know what you need, get in touch and I will ensure you get the best product for your application.

Are you interested in learning more about commercial ducted dehumidifier? Contact us today to secure an expert consultation!

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