The Best Dehumidifier for Conservatory – Reviews & Guide

Last Updated on May 8, 2024 by Justin Williams

A conservatory is a glass building that is typically used as an extension of a home. It can be used as a sunroom, greenhouse, grow room, or even an extra living room. Because conservatories are made mostly of glass, they are very good at trapping heat. This can make them very humid, which is why you need one of the best dehumidifiers for conservatory.

Dehumidifiers help to remove excess moisture from the air, which can make your conservatory more comfortable and prevent mold and mildew from growing. They can also help to reduce condensation on the windows, which can make them easier to clean.

There are many different types of dehumidifiers available on the market, so it is important to choose one that is right for your needs.

Let's find out!

The Best Dehumidifier for Conservatory in 2024

  1. 1
    GE Energy Star Portable 50-pint Dehumidifier with Pump (The Winner)
  2. 2
    Frigidaire FFAD3533W1 Dehumidifier (The Runner-up)
  3. 3
    DampRid Drop Starter Kit (The Best Desiccant Dehumidifier for Conservatory)

Types of Dehumidifiers That Can be Used for Conservatory

There are two different types of dehumidifiers that can be used for conservatories, which called "desiccant" and "compressor" dehumidifiers, and the best one for you will depend on your specific needs.

When it comes to dehumidifier sizing, some dehumidifiers are designed for large rooms, while others are more compact and are suitable for small to medium-sized rooms. Also, if you have a lot of humidity in your conservatory, you may want to consider a dehumidifier with a higher capacity.

Here are some of the different types of dehumidifiers that can be used for conservatory:

  1. 1
    Large Conservatory Dehumidifier: These dehumidifiers are designed for larger spaces and can cover an area of up to 4000 square feet. They usually have a higher capacity and can remove up to 50 pints of moisture per day.
  2. 2
    Compact Dehumidifier: These dehumidifiers are designed to handle smaller space and can be easily moved from room to room. They usually have low capacities, ranging from 30 pints of moisture per day.
best dehumidifier for conservatory

You have to keep your conservatory relative humidity between 30 - 80%, which is ideal for your health and conservatory plants. 

Do Dehumidifiers Work in Cold Rooms or Unheated Conservatories?

If you want to dehumidify your conservatory in the summertime, you can use a normal electric compressor dehumidifier. This type of dehumidifier is designed to remove moisture from the air, and it can be quite effective at keeping your conservatory comfortable during the warmer months.

In the winter, some experts may suggest you use a desiccant dehumidifier for your conservatory instead of a compressor dehumidifier as the compressor unit's coil may freeze up due to very low temperatures. However, the biggest disadvantage of desiccant dehumidifiers is that they are usually quite small and do not have enough capacity to dehumidify medium-to-large spaces.

Luckily, many electric compressor dehumidifiers on the market today come with the auto-defrost function, or at least, are able to operate at low temperatures down to 41 degrees F. These types of dehumidifiers are perfect for cold rooms or unheated conservatories.

Reviews of the Best Dehumidifier for Conservatory in 2024



Best For

Type of Dehumidifier

Editor Ratings


Large conservatories



Medium-sized conservatories



Small conservatories


GE Energy Star Portable Dehumidifier 50 Pint with Pump review

The GE Energy Star Portable Dehumidifier is the best dehumidifier for conservatory in 2024 because it is the most functional portable dehumidifier that we have come across. It has a 50-pint capacity which means there is 50 pints of water can be removed from the room in 24 hours. With that large capacity, it is suitable for a large conservatory of up to 4000 square feet.

The unit comes with an internal pump and an included standard hose allowing water to be drained to a sink or out a window automatically, thus you don't need to check the water level frequently to empty the tank when it gets full.

Moreover, the auto-defrost feature is something that we really like. It works very well and is a must-have for people who want to get their dehumidifiers run efficiently in low-temperature conditions. It is also the most reliable dehumidifier for cold rooms or unheated conservatories.

The empty bucket alarm lets you know that your dehumidifier needs to empty the water tank. It is advisable to use the continuous drainage function instead of manually emptying the water tank, so you will no longer need to use this alarm. In addition, the clean filter alert is a handy feature that reminds you about the need to clean the filter in order for your unit to work at its best.

This dehumidifier also has the Energy Star rating which means it is energy efficient and will save you money in the long run (you can set this dehumidifier to run 24/7 without worrying too much about electricity bills). Plus, this dehumidifier is so quiet, you won't even notice that it is running. This unit has a one-year warranty from the manufacturer. 

What We Liked

  • Large capacity
  • Built-in pump
  • Auto-defrost function
  • Standard LED control display
  • Clean filter alert

What We Didn't Like

Our Ratings

Frigidaire FFAD3533W1 Dehumidifier review

Frigidaire's FFAD3533W1 dehumidifier is our top pick for a conservatory. It's a great choice for anyone who wants to keep their humidity levels low, and it's especially good for people with allergies or asthma. This dehumidifier can remove up to 35 pints of water per day, and it has an automatic shut-off feature that prevents the water tank from overflowing itself.

It also has a continuous drain option that turns the water collected into a drain automatically, so you don't have to check on the water level and empty the bucket yourself. It has a 24-hour timer, and it's Energy Star rated, so you won't have to worry about your bills getting out of hand.

The FFAD3533W1 is also very quiet so that it won't disturb your peace and quiet during the day. Moreover, the unit is designed to work in low-temperature conditions down to 41 degrees F. The filter is washable so you can clean it yourself without any hassle.

It has a custom humidity control display so you can see the humidity levels in your room and know whether or not the unit is working properly. This dehumidifier also comes with a one-year warranty.

What We Liked

  • Made by a well-known dehumidifier brand
  • Continuous drain feature
  • Low-temperature operation
  • Very quiet at the lowest fan speed

What We Didn't Like

  • Doesn't have internal pump
  • Doesn't have auto-defrost function
Our Ratings

DampRid Drop Starter Kit review

If your small-sized conservatory is feeling a little damp and muggy, then it might be time to invest in a dehumidifier. The DampRid Drop Starter Kit is a great option for anyone looking for an effective way to remove excess moisture from the air, especially in the winter because this desiccant-based dehumidifier does not require electrical power to operate so it has no coil to be frozen in cold weather.

This desiccant dehumidifier uses a "drop-in tablet" (calcium chloride) to absorb moisture from the air, helping to keep your conservatory dry and comfortable. The kit comes with two main parts that you need to get started, including a drop-in refillable moisture-absorbing container and two fragrance-free or fresh scent refill tabs.

The drop-in container is made of a clear plastic material that allows you to see how much moisture has been absorbed and when it needs to be emptied. The 360-degree ventilation design allows air to flow through the unit easily, thus it can work more efficiently. When the refill tab is used up, you can simply replace it with another one with ease.

The biggest drawback of this unit is that it doesn't have a lot of features and it may not be a good choice for medium-to-large conservatories. But if you're just looking for something to get the job done, this may be the perfect option for you.

What We Liked

  • Does not require electricity
  • Very easy to use
  • Removes musty smells and adds fresh scent
  • Affordable

What We Didn't Like

  • Small capacity
  • Small water bucket
Our Ratings

Factors to Consider when Choosing the Best Dehumidifier for Conservatory

When it comes to dehumidifiers, not all models are created equal. Some are better suited for certain rooms or spaces than others.

When choosing a dehumidifier for your conservatory, there are a few factors you'll want to take into account in order to choose the best model for your needs.

  • Desiccant or compressor dehumidifier: What type of dehumidifier you choose will depend on the temperature of your conservatory. If you want to dehumidify your small conservatory in the winter months, then a desiccant dehumidifier (which works by using a desiccant to absorb moisture) is best. If you want to keep moisture at bay in medium-to-large conservatories, then consider an electric dehumidifier with an auto-defrost function.
  • Dehumidifier size: You may need a 35 - 50 pint dehumidifier for medium-to-large conservatories. If the room is smaller, you'll want a dehumidifier that's compact (30 pints per day or less).
  • Water tank capacity: Dehumidifiers with a large water tank will let you set the dehumidifier to run for as long as you need, without having to empty the tank every few hours.
  • Continuous drain function: Dehumidifiers with a continuous drain function will let you connect the unit to a drain or a tap, so that water is automatically removed from the tank. This means that you can keep it running all day or overnight without having to empty the tank manually.
  • Auto-defrost: Dehumidifiers with an auto-defrost function will automatically defrost the coil when it gets too cold (especially in the winter), so that you don't need to worry about it getting clogged up by ice or stopped operating.
  • Ease of use: Most portable dehumidifiers are very easy to use and don't require installation. All that you need to do is plug it in, select the humidity level and set the timer, if desired.

What We Found

After reviewing the top 3 dehumidifiers for conservatories, we found out that not only desiccant dehumidifiers can operate in cold rooms or unheated conservatories but also compressor dehumidifiers with the auto-defrost feature can do the same thing even better.

Therefore, a compressor dehumidifier specially designed for low-temperature operation may be the best choice for conservatories. We've also learned that the best desiccant dehumidifier for conservatory has to be easy to use, remove musty smells and make the room more fragrant.

A Few Final Words

We voted the GE Energy Star Portable Dehumidifier as the best dehumidifier for conservatory because it can operate at a temperature as low as 35°F, it has an Auto-Defrost feature and it can cover a medium-to-large area up to 4000 sq. ft.

The other two dehumidifiers on the list are not bad either, just do your own research and pick the one that suits your conservatory best.

0/5 (0 Reviews)

My name is Justin Williams. I am the founder and blogger at (read more about us). I was an allergy sufferer and that is also the reason why I began my trek to finding the best dehumidifier for my own personal health issues. All of the dehumidifier top picks on the site were put through their paces by Lance Perez - our dehumidifier researcher. He put each one through a series of tests to see how well they performed. Then, our editorial team compiled the insights into articles and published them.

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