Thermoelectric Dehumidifier: What Is It & How Does It Work?

Dehumidifier Critic / Thermoelectric

A thermoelectric dehumidifier regulates humidity levels in a room. It may also be used to remove water from the air to reduce humidity levels. The Peltier effect is how it maintains humidity levels.

This device has been designed utilizing high-quality materials and cutting-edge technology, which has earned it a solid reputation for effectiveness and durability.

To discover more about thermoelectric dehumidifiers and their capabilities, read on.

What Is a Thermoelectric Dehumidifier?

A Thermoelectric dehumidifier or also known as a Peltier dehumidifier is the most recent addition to the dehumidification industry. This type of dehumidifier was introduced in the United States country only in 2007.

This thermoelectric is made with a Peltier technology element wherein it is made up of two different materials with an opposite electrical charge. One side has a positive charge and the other side has a negative charge.

It is a highly advanced dehumidifier that uses a Thermoelectric module to cool down and heat the air. This is designed in a way that one side of the Peltier technology element produces heat while the other produces cold.

You can use this to manipulate the temperature within your room or area. They also can control airflow as well by using venting technology known as a blower fan.

This new technology of dehumidification is excellent for those who want to use a dehumidifier with more energy efficiency. Not only are they easily affordable and cost-efficient, but their performance is also excellent.

How Does a Thermoelectric Dehumidifier Works?

A thermoelectric dehumidifier is a kind of mechanical cooling system that uses a solid-state electronic device known as the Peltier technology element.

The Peltier technology element heats the air passing through its hot side, while it cools down the air running on its cold side. This process is done continuously while the cooled and heated air pass through a heat exchanger (fan). 

The temperature of the exiting air depends on which Peltier module operates in heating mode or cooling mode. Therefore, it can pull moisture from humid air depending on the operation mode set by the user.

It has some similarities with desiccant dehumidifiers, but unlike the latter, it can draw moisture from humid air while working as an ordinary cooling system at the same time.

Related Article: Desiccant Dehumidifier: What Is It & How It Works? (Absorption)

The Thermoelectric Effect

Thermoelectric Dehumidifiers utilize a phenomenon known as the thermoelectric effect. This occurs when electrons can flow from the hot side to the cold side. 

This happens when there is an unequal distribution of temperature between two different objects or points in a single object. This situation will attract the electrons to move to equalize the charge between two objects.

This principle is operated through a unique solid-state electronic component known as the Peltier element. This makes use of an electronic current to create a heat difference, which draws water molecules from humid air or surfaces.

This is, in essence, how this machine work.

Thermoelectric Dehumidifier Parts

A thermoelectric dehumidifier is made up of several components. They are the following:

Control Unit / Electronic Module

It controls and regulates the unit’s operations. It has an LCD and indicator light that tells you the temperature difference, humidity level, operating mode, and side heat sink.

Thermoelectric Module (Peltier Plate)

This is where the magic happens. It is responsible for removing heat from one side and transferring it to another side.

Condenser Coil

It’s also known as the cold side condenser, which is placed on top of your compressor dehumidifiers. This part cools down so that the Peltier plate can operate effectively.

Evaporator Coil

This is the hot side of the unit. It is placed below your dehumidifier and it heats up to make sure that the condenser coils can operate effectively.

Key Features and Functionalities (Thermoelectric Dehumidifier)

A thermoelectric dehumidifier has notable key features and functionalities. They are the following:

Venting Functionality

It can be vented easily to other rooms or areas with an air conditioner unit or fan. This way, it can cool down warm air while eliminating humidity from the area. On top of that, it also helps in eliminating the bad odor from your room.


Thermoelectric dehumidifiers are much easier to move around and transport from one place to another compared to other types of dehumidifiers. This makes them best for small spaces such as wardrobes, closets, bathrooms, laundry rooms, and small storage areas at home.

High-Efficiency Peltier Element

Compared to other types of dehumidifiers, a thermoelectric dehumidifier is considered to be the most efficient. This is due to its unique solid-state electronic component called the Peltier element.

This makes it work faster than ordinary dehumidifiers without compromising your electricity bill.

Low Noise Levels

Compared to other types of dehumidifiers, a thermoelectric dehumidifier is the quietest due to its unique solid-state electronic.

Therefore, it won’t disrupt anyone who’s working in your room while drawing moisture from your surrounding air or place.

Thermoelectric Dehumidifier Advantages and Disadvantages


Quiet Operation

Thermoelectric dehumidifiers are typically quite quiet. Because they employ a solid-state electronic component called the Peltier element, they operate silently and do not make as much noise as other humidifiers.


Compared to other types of dehumidifiers, a thermoelectric dehumidifier is known to be the most reliable. These units are built with high-quality materials.

This essentially means that these machines will not break down easily and can last for several years.


Moisture Removal Rate

A thermoelectric dehumidifier has a slow moisture removal rate. This makes it much less efficient than some other dehumidifiers that can remove water 10 or even 20 times faster than this type of device.

Limited Capacity

Thermoelectric dehumidifiers have a lower capacity when compared to other types of dehumidifiers. This means that they are not capable of removing as much water from the air as some other models and brands can remove.


Thermoelectric dehumidifiers are more expensive than other dehumidifiers. This is due to their solid-state electronic components and other high-end features that allow these units to operate quietly and efficiently.

The Best Way to Use a Dehumidifier (Thermoelectric)

You’ll have to use your dehumidifier for a long time if you are drying out a room even like basements. When a humidifier has an adjustable thermostat its temperature will rise only if it rises above the target humidity rate.

After you reach your target baseline humidity (eg. 50% humidity) you’ll only use them for 2-4 hours a day to keep that level. You’re not likely to need them every day of the season. It depends on its conditions.

If you have a humidity indicator that allows you to adjust the humidity level then that humidity will not have to be turned on for you.

In a few days, you can turn off the dehumidifier and start using it again when the desired humidity level is reached.

Thermoelectric Dehumidifiers and How They Work?

Mini-Size Thermo Electric Dehumidifier

Mini Dehumidifier has the capacity of removing 4 to 9 ounces of moisture per day. 

1. Ivation IVADM10 Dehumidifier

Ivation IVADM10 Dehumidifier comes with an auto shut-off functionality, so it has safes from any spillage. It also has a 24-hour timer and a humidity sensor which automatically turns it on when the room reaches its set room temperature.

It is equipped with an LCD that has a led indicator for power, fan speed, and mode settings. This mini-unit is estimated to be able to remove up to 1.1 pints of moisture every 24 hours.

One of the most attractive features of this unit is its ability to last for up to 13 consecutive days on just a three-hour charging time.

2. Gurin DHMD-210 Dehumidifier

Gurin Electric Compact Dehumidifier is the quietest model in its class, so it’s perfect for using overnight or while you’re asleep. It has an automatic or programmable feature that allows you to preset the unit’s operation. 

This unit has an antimicrobial-treated air filter that prevents bacteria, mold, and mildew buildup. It also comes with a drain hose that will enable you to easily remove the water from your unit into a separate container or heat sinks.

It is powered by 2D batteries and has a low-battery warning indicator that will alert you when your battery needs to be changed. 

3. Eva-Dry EDV-1100 Dehumidifier

The Eva-Dry EDV-1100 is a powerful dehumidifier that comes with an excellent warranty. You can control the temperature of your home by setting the fan speed and the maximum humidity level. 

The condenser is made from sturdy carbon steel metals, which is why it can withstand moisture without rusting or corroding. It also comes with an automatic shut-off feature that will help keep your machine in good condition.

4. Ivation IVAGDM20 Dehumidifier

Ivation IVAGDM20 removes up to 2.2 pints of water out of the air every 24 hours. It has a high capacity and it can run for up to 7 days straight. 

The machine is made using ABS plastic, so it is guaranteed to last for many years to come. It also comes with an auto-restart function.

This dehumidifier is small, but it can work even in the most humid of areas. It also has a 24-hour timer that will allow you to set your desired humidity level and time. 

5. Ivation IVADM15 Dehumidifier

The unit features a “wet” function, which will ensure that the air inside your home will always be clean and dry. It is also equipped with an optional ionizer for better air quality.

It can run for up to 14 consecutive days on a three-hour charging time. The low-temperature technology prevents condensation, which allows you to enjoy dry air even as the outside humidity level is high.

This machine also comes with deodorization settings that will remove unpleasant odors from your home or office. 

Also, the built-in digital thermostat allows you to control the temperature and set specific times to save energy consumption.

Mid-Size Thermo Electric Dehumidifier

Mid-Size Dehumidifier has the capacity of removing 11 to 14 ounces of moisture per day. 

1. Ivation ERSDM18 Dehumidifier

The Ivation ERSDM18 has a large condenser coil that can hold up to two quarts of water in its water tank. It also has an automatic bucket function that will alert you when it needs to be emptied. 

This model will last for about ten consecutive days on just three hours of charging time and one hour of use. It is also equipped with a digital thermostat and an automatic shut-off function.

2. SPT SD-350 Dehumidifier

The unit comes with a hygrostat that allows you to control the humidity in your home, so you can adjust it as needed if you live in a particularly dry region.

The SPT SD-350EW is also known for being an extremely quiet unit, so you won’t be able to hear it humming from another room. This makes it ideal for the bedroom or anywhere else where you’ll be trying to sleep.

3. Ivation IVADM20 Dehumidifier

This unit is capable of removing up to two pounds of moisture from the air every day. It has a double-wall construction that prevents condensation and increases durability.

The Ivation IVADM20 is known for its reliability, so you don’t have to worry about how well it will work in your home. It also has an LED display and push-button control that make it easy to use.

4. SPT SD-350TI Dehumidifier

This model can run for about eight consecutive days once it is fully charged, so you won’t have to worry about turning it off prematurely during peak seasons. It also has a low-battery indicator that will let you know when it’s time to change the cells.

If you want a low-cost dehumidifier, then the SPT SD-350TI is an ideal choice. It doesn’t require any upkeep or special maintenance on your part.

5. Perfect Home EWDH4 Dehumidifier

The Perfect Home EWDH4-50L has a built-in humidistat that allows you to control the humidity level inside your home. The unit is also equipped with an automatic shut-off function and it can run for about eight hours straight. 

It comes with a washable air filter which will prevent dust buildup, so you’ll be breathing clean and dry air at all times. 

Large-Size Thermo Electric Dehumidifier

Large Dehumidifier has the capacity of removing more than 20 ounces of moisture per day. 

1. Ivation IVADM35 Dehumidifier

The Ivation IVADM35 is equipped with double-wall construction and an air defrost system that will prevent condensation buildup. This unit comes with a digital thermostat and an automatic shut-off function.

The unit has separate timer settings for the fan and compressor. You can set it so that you won’t have to listen to sound effects while it’s working, which will allow you to get uninterrupted sleep even as it works in the background.

2. Ivation IVADM45 Dehumidifier

The Ivation IVADM45 is known for being extremely quiet, so you won’t be disturbed by any bracing sounds or hisses as it works while you’re trying to sleep.

The unit comes with an integrated washable air filter that reduces dust accumulation in the drum and other internal parts. You won’t have to worry about replacing filters every few months because you’ll only be able to clean this one for years at a time as needed.

3. Eva-Dry EDV-2200 Dehumidifier

The EDV-2200 is the larger, high-capacity version of Eva-Dry’s very popular EDV-200 dehumidifier. It is an ideal choice for those who need something that can handle a larger, more spacious room.

It’s been designed to eliminate the demand for costly repairs with a full one-year warranty. Also, you’ll be able to get the job done quietly with this dehumidifier, as it only emits 55 decibels of noise.

4. Gurin DHMD-310 Dehumidifier

The Gurin DHMD-310 dehumidifier is a great choice if you want to remove moderate levels of moisture from your home while also saving some cash. It’s an ideal choice for those on a tighter budget.

For best performance, it’s advised that you do not use tap water with this model. Instead, you should use distilled water reservoir to prevent minerals and other impurities from clogging up the unit.

Thermoelectric Dehumidifiers FAQ

Do Thermoelectric and Peltier Technology Works at Large Scale?

Thermoelectric technology is less practical for large-scale applications. However, it’s best to use a dehumidifier that has an electric compressor if you have a large room or space that requires heavy-duty moisture removal capabilities.

Would a Thermoelectric Dehumidifier Works in an Ambient Temperature of 32-40 Degrees Fahrenheit?

You can use thermoelectric dehumidifiers in an ambient temperature range of 32-40 degrees Fahrenheit. However, it’s best to choose a model that provides customizable humidity settings so you can ensure optimal performance at all times.