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Swimming pool dehumidifiers

DRY 300Through-the-wall

DRY 300 | 30 m²
DRY 400 | 45 m²
DRY 500 | 60 m²
DRY 800 | 90 m²
DRY 1200 | 120 m²
Pool size
30 m²
47 l

Top extraction - Best efficiency

Series DRY 300 provides full swimming pool environment control by monitoring and regulating humidity and air temperature. Units are suitable for small pools, wellnesses or hot tubs. Conceived and designed to deliver more, MICROWELL DRY swimming pool dehumidifiers are a highly innovative solution for indoor pools. Operating on the condensation principle, they provide constant, reliable and effective heat recovery with the highest efficiency.

Extended lifetime warranty, click and learn more.

Where to buy
Size guide
Pool surface
Extraction rate
Extraction rate
Air flow
Pool room Min/Max
DRY 300 WAVE 30 m² 36 l/24h/60% RH, 30C/ 48 l/24h/80% RH, 30C/ 550 m³/h Min 80 m³ / Max 275 m³
DRY 400 WAVE 45 m² 48 l/24h/60% RH, 30C/ 58 l/24h/80% RH, 30C/ 600 m³/h Min 85 m³ / Max 300 m³
DRY 500 WAVE 60 m² 66 l/24h/60% RH, 30C/ 101 l/24h/80% RH, 30C/ 800 m³/h Min 100 m³ / Max 400 m³
DRY 800 WAVE 90 m² 90 l/24h/60% RH, 30C/ 136 l/24h/80% RH, 30C/ 1100 m³/h Min 135 m³ / Max 550 m³
DRY 1200 WAVE 120 m² 120 l/24h/60% RH, 30C/ 181 l/24h/80% RH, 30C/ 1200 m³/h Min 145 m³ / Max 625 m³

Not sure which dehumidifier

should you choose?

Key data

Noise Level | DRY 300 - Microwell
Noise Level
42 dB
Heat Recovery | DRY 300 - Microwell
Heat Recovery
1900 W
Power Consumption | DRY 300 - Microwell
Power Consumption
700 W
Air Flow | DRY 300 - Microwell
Air Flow
550 m³/h

Customize your


Cutting-Edge Dehumidification Technology

Microwell Dry 300 TTW is a state-of-the-art swimming pool dehumidifier that ensures optimal moisture control in indoor pool area. With an impressive extraction rate of up to 63l/day, this unit effectively maintains a comfortable and safe swimming environment.

Energy Efficiency for Cost Savings

At Microwell, we understand the importance of energy efficiency. Dry 300 TTW is engineered to provide outstanding dehumidification performance while keeping energy consumption under control. By reducing operational costs, this unit helps you save money and reduce your environmental footprint.

Robust Metal Construction for Durability

Designed to withstand the rigors of poolside operation, Dry 300 TTW has a metal housing. This durable construction not only ensures a longer lifetime for the dehumidifier but also protects it from the challenging conditions often found in indoor pool areas.

User-Friendly Control Panel

Control of Dry 300 TTW is a breeze thanks to its intuitive control panel. It is so easy to adjust settings, monitor humidity levels and set timers with user-friendly controls. For added convenience, you can seamlessly integrate it into your building's automation system, enhancing overall operational efficiency.

GoldFin exchanger protection

Crafted with precision and innovation, the GoldFin epoxy protection shields the heat exchanger fins against corrosion caused by chlorine, salt, and moisture. This advanced technology not only extends the lifespan of the exchanger fins but also enhances heat transfer efficiency, resulting in a more energy-efficient and cost-effective solution for your pool heating needs.

Maximize savings - save by drying

Experience unparalleled efficiency with our cutting-edge pool dehumidifier, boasting a remarkable energy consumption rate of only 0.527 kWh per liter. This revolutionary system employs advanced technology to extract excess moisture from the air with minimal power usage, ensuring highly economical operations. By efficiently controlling humidity levels in your pool area, this dehumidifier not only enhances comfort but also significantly reduces energy costs, making it a sustainable and cost-effective choice for maintaining an optimal indoor pool environment. Dive into savings while enjoying superior performance with our eco-friendly DRY300 TTW pool dehumidifier.


Microwell microLIGHT+ is a unique LED technology designed to quickly and accurately transform current level of humidity into color. This way you can easily understand your current climate. Green light, just like on traffic lights, means that everything is ok. Red light alerts high humidity. Blue light simply tells you that humidity is too low so you can turn the your dehumidifier off and save on electricity.

Technical data and more

If you want to know more just click

Microwell DRY swimming pool dehumidifiers are designed with customer in mind. Built with best materials, modern equipment and carefully executed processes on every step of product development, they offer advanced functionality and the widest selection of accessories for customer‘s satisfaction.

Specially developed dehumidifiers for residential and hotel pools, spa and jacuzzi. If you are looking for a humidity control technology in a private pool, hotel or spa, by Microwell you are in the right place.

DRY300 will prevent condensation on your windows and walls. It will prevent bacteria grow and strange humid smell or damp feeling. It will do its job fully automatically and quietly.

DRY dehumidifiers are leading Microwell swimming pool dehumidifiers used in 30+ countries to mainly control the humidity in pool and spa areas. DRY dehumidifiers are also vastly used for areas that require effective humidity control with a machine which is as quiet and as less disturbing as possible.

DRY300 range is suitable for pools and water areas with water surface up to 30m2.

DRY300 range is designed for high moisture extraction, low energy consumption and low noise.

DRY300 unit extracts 36 liters of vapor from air per day at typical pool conditions of 30°C air temperature and 60% relative humidity. DRY dehumidifier series is designed to do the job in other possible environments. It provides with a decent extraction of almost 20 liters per day at 5°C air temperature and 80% relative humidity and excellent 53 liters at 35°C air temperature and 80% relative humidity.

Thanks to outstanding design, leading technology and up-to-date concepts, Microwell products achieve up to 36% lower energy consumption than the others. Our product saves you money every day and helps to keep your bill under control.

DRY dehumidifiers are low energy dehumidifiers designed to save energy costs every hour they run. DRY300 model uses on average only 700W of energy. In return the unit provides with an effective humidity control through massive extraction and high heat recovery up to 1900W. This makes DRY300Model the most energy efficient on the market.

Dehumidify and heat by one device. DRY300 provides with heat recovery of 1900W while consuming only 700W. The unit, while dehumidifies, provides with a free heating which can be subtracted from your current heating system. You thus will save twice while running this machine. Should more heating be required, the unit can be equipped with either LPHW (Low Pressure Hot Water coil) or electrical heater with a combined maximum heating ability of an amazing 5.4kW!

DRY dehumidifiers are installed in:

  • Swimming Pools
  • Spas
  • Hotels and Wellnesses
  • Hot tubs and Jacuzzis
  • Fitness clubs
  • Gyms
  • Museums and archives
  • Warehouses
  • Drying rooms for laundry, breweries
  • Military storages
  • Bakeries
  • Wine cellars

DRY300 range can be mounted on a wall to be out of the way and yet be in position to be in control of humidity. They also are very popular on the mobile stand using 4 fully rotatable wheels providing more space. Should the unit be completely hidden or due to electrical safety it cannot be installed directly inside pool or hot tub area, the dehumidifier can be installed out of pool hall. DRY dehumidifiers can be mounted in a technical room providing humidity control through through-the-wall ducts with 2 elegant grills visible from pool hall. Customers are very pleased by this through-the-wall installation as it is practically noiseless.

DRY300 Through the wall comes in through-the-wall installation make. The unit can be mounted behind up to a 400mm thick wall. The ducting is made from galvanized steel.

Control or regulation of the unit is very important for a customer. DRY300 model provides with all possible options you may require. You may go for a classic old school built-in rotary humidistat; you can upgrade to a remote wired humidistat to place it on a wall; you can regulate the unit using remote wireless digital control or simply use built-in digital control. All controls are designed for accuracy and customer comfort.

Noise level is a frequently asked question. DRY dehumidifiers are probably the quietest on the market with only 42dB(A) applying Microwell unique technology ultraQUIET+ eliminating any excessive noises or vibrations. Typical noise level of a quiet room is 30dB(A), typical conversation between 2 people can rise up to 60dB(A). Unit’s 42dB(A) at air flow of 5503/h, extraction rate of 53 liters and extra heating of 1900W just confirms how unique Microwell machines are.

DRY300 model uses 5 speed AC fan simulating DC energy saving operations.

DRY300 model is gentle to environment and eco-friendly as it uses the most advanced R410A refrigerant.

The unit can supply fresh air in excess of 30% of its nominal air flow, i.e. about 1653/h. The air is effectively preheated by hot condenser prior it enters pool hall.

Air aggressiveness is very important to a dehumidifier as it typically operates in a chlorine or salty environment. Microwell ensures probably the highest protection of the whole machine and its components. The coils are from anodized aluminum fins coated with GoldFin epoxy finish. Copper pipes are finished with zinc coating for a maximum protection against aggressive substances present in pool’s air. All metal parts are galvanized and powder coated, where needed stainless steel or titanium of highest pureness is used.

The units are manufactured in European Union complying with very strict engineering standards. To ensure absolute quality, each unit is individually tested for full operations before it is packed and loaded on truck or container. The factory is certified according to ISO9001, ISO14001 and ISO18001. Each unit is certified against EU standards holding CE certificates and full Conformity. Other compliant standards are RoHS and IP44.

DRY dehumidifier series have widest range of makes and accessories options on the market. The unit can be adjusted and tailored is such a way that seemingly there is no pool or spa or hotel this dehumidifier could not serve. Please see below section of Standard equipment and Accessories for more information.

Typically, the unit is in stock near you. Due to many different ways the unit can be tailored on demand, it may take up to 10 days to deliver the unit to you.

DRY dehumidifiers are amazing due to their micro+ features providing they have by standard. More info micro+.

Humidity is not an enemy when controlled but can cause serious troubles otherwise. Ideal humidity for pool or spa users is when they feel comfortable. This feeling is achieved by an ideal relative humidity from 55% to 65%. Humidity above 70% is detected by condensation on windows and walls and the humidity continuously deteriorates the pool or spa environment. It is also a perfect environment for mould and bacteria to grow. Humidity lower than 45% actually causes a reversed problem to bathers in the form of dry feeling and possible harm to mucous tissue. The innovative series of Microwell dehumidifiers keep the humidity at ideal 55%-65%.

If you need assistance in sizing the right dehumidifier model for you please use our online calculator providing with an instant model type needed for your pool. CALCULATOR

Or click on HOW CHOOSE A DEHUMIDIFIER on the left side of your screen.

DRY 300 TTW product components

Offering an in-depth look at the Dry 300 TTW, explore its intricate components for a comprehensive understanding of its advanced features.


Technical data

Pool surface (m²)
Extraction rate (l/24hrs) 30°C/60%RH
Extraction rate (l/24hrs)30°C/80%RH
Air flow (m3/h / Pa)
Noise level at 1m dist. (dB(A))
Power consumption (W)
Heat output (W)
Dimensions netto (w/h/l)
Weight netto/brutto (kg)
DRY 300
from 780x660x255
from 40 to 56
DRY 400
from 780x642x255
from 40 to 56
DRY 500
50 - 60
52 - 66
68 - 101
800 - 1000
44 - 56
from 1245x642x300
from 60 to 90
DRY 800
80 - 90
88 - 90
135 - 136
46 - 58
1600 - 1700
from 1247x950x300
from 100 to 135
DRY 1200
110 - 120
112 - 120
170 - 181
46 - 60
2150 - 2250
from 1247x950x300
from 103 to 136

Manufacturer reserves the right to change the technical data without notice.

Read more

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