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Dehumidifier TTK 66 E
Home Comfort
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  2. Products ‑ HomeComfort
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  4. Condensation dehumidifier of the TTK-series
  5. TTK 66 E

Comfort dehumidifier TTK 66 E

The powerful solution for the use at home and in the office

High performance combined with design and comfort

The comprehensive equipment of the TTK 66 E offers all the manifold high standards of the HomeComfort series. And the dehumidifier features even more exclusive extras.

This elegant dehumidifier in unpretentious white is worth every recommendation – for example when it comes to its dehumidification performance. The TTK 66 E extracts up to 24 litres of moisture from the ambient air per day and is suited for rooms sized up to 50 m².

With a total of four operating modes, the TTK 66 E provides drier room air, which is more pleasant for the body. One operating mode is the hygrostat-controlled automatic dehumidification function with target values that can be set from 35 to 85 % relative humidity in convenient steps of 5 % – including an on-demand turbo blower. Another one is the special comfort function. In this mode, the TTK 66 E automatically controls the humidity level to a comfortable value depending on the temperature. Moreover, a laundry drying function and a continuous operating mode are available.

Comfort function: Temperature-dependent dehumidification

For a perfect indoor climate, the room temperature and humidity level must be synchronized. And this is exactly where the temperature-dependent dehumidification comes in. The device adjusts the humidity level to the optimum value depending on the temperature. The comfort function is particularly advisable when utilizing program-controlled heating systems. If the room temperature changes in the day or night, the dehumidifier adapts its dehumidification performance in a fully automated fashion.

Product brochure Practical guide to air dehumidification


Moisture in the bathroom, basement or bedroom can lead to mold. All relevant information about our comfort dehumidifiers can also be found in the product brochure. Download the PDF directly here.

To the PDF document

Gentle laundry drying with dehumidifiers

Apart from ambient air dehumidification, a dehumidifier can be conveniently used for drying laundry – either in an assisting way or as a full replacement for a conventional dryer. The laundry drying function (also referred to as clothes drying mode or SuperDry function) is comparable to traditional air drying outside.

Dehumidifiers offer the benefit of drying the laundry as gently as in the nature outside. Colours retain their brilliance and the life span of clothes is longer than with conventional dryers – and all this with a substantially lower power consumption.

Furthermore, even sensitive materials such as wool, silk or synthetic fibres can be dried without any problems. In contrast to pure air drying, the laundry feels much softer and more pleasant on your skin.

Laundry drying can also be performed with dehumidifiers without an additional laundry drying function. The target value of the air humidity must then be set in accordance with the desired residual humidity:

Cupboard dry: 46 % of relative air humidity

Iron dry: 58 % of relative air humidity

Skin dry: 65 % of relative air humidity

Laundry-drying function
Environmentally friendly refrigerant R290

Propane (R290) as environmentally friendly refrigerant in dehumidifiers

Every year, several million tonnes of environmentally harmful CO2emissions (greenhouse gases) are emitted into the air by synthetic refrigerants. For this reason, the utilization of alternative refrigerants has become one of our key objectives. By using propane (R290) as refrigerant, this dehumidifier makes a valuable contribution to protecting our climate.

The natural refrigerant propane (R290) is an organic compound belonging to the group of hydrocarbons. Unlike synthetic refrigerants the environmentally friendly propane (R290) comes with neither ozone depletion potential (ODP = 0) nor a noteworthy greenhouse effect (GWP = 3).

Additional bonus for the environment: Owing to its excellent thermodynamic properties, propane (R290) is a particularly energy-efficient refrigerant thereby additionally reducing your energy costs.

Convincing functional range

With the convenient 24h timer function, you can set the precise time for automatic switch-on or switch-off of the device beforehand. The variety of functions is for instance completed by the filling level warning light to indicate a full water tank as well as the overflow protection with automatic switch-off function. A discreet window at the front is another special feature of the dehumidifier allowing you to visually check the water tank's filling level. 

The washable air filter and a drainage connection enabling unattended continuous operation top off the convenient features of the TTK 66 E and allow for an extremely simple use of the device. And even a change of location becomes a pure pleasure with this dehumidifier – thanks to the practical cable holder, integrated carrying handles and steerable wheels.

Auto restart function

Auto restart function

In case of an unexpected switch-off due to a power interruption, the auto restart function (or “Memory function”) makes the device restart with the previously selected setting as soon as the power supply has been restored. This makes the dehumidifier also suitable for combined use with a timer.

TTK 66 E – special equipment features

TTK 66 E control panel
The operating panel of the TTK 66 E is provided with a clear design and is easy to understand. The digital display for example shows you the current relative humidity level in the room.
TTK 66 E air filter
The easily removable air filter retains lint and animal hair and can be quickly and easily wiped or washed out.
TTK 66 E water tank
The removable water tank is provided with a storage capacity of 3 litres and a fill level window. The device stops automatically when the tank is full and indicates this via LED.
TTK 66 E rear view
In order to continuously drain the condensation water, a pipe can be connected on the rear of the device. The power cable can be wound up properly and clamped in the mounting bracket.
TTK 66 E comfort function
By the automatic coordination of room temperature and air humidity, the comfort function provides for a perfect feel-good ambience. Depending on the temperature prevailing in the room in each case, the humidity level is regulated automatically to a specially pleasant 45%, 50% or 55%.
TTK 66 E timer function
Use the practical timer function to switch the device after a defined number of hours (up to maximally 24 h) on or off. The timer can be programmed in increments of 0.5 hours (0 to 10 h) or in increments of 1 hour (10 to 24 h). The timer prevents unnecessary operating periods and allows you to adapt the dehumidification to your individual rhythm of life.
TTK 66 E laundry drying function
The TTK 66 E may also be used as room air laundry dryer to dry wet laundry in living spaces or utility rooms. In this way, you speed up the drying process of the clothes and prevent the humidity contained on the clothes from condensing in the room and from becoming a hotbed for mould.
TTK 66 E permanent mode
In the permanent mode, the TTK 66 E dehumidifies the room air in continuous operation. This is especially suitable for cellar or storage spaces which are subjected to mould formation by excess humidity. To avoid that you constantly have to drain the water tank, a condensate drain hose can be connected.

TTK 66 E in the office
Whether at home, in the office or in the bedroom – with its comfort operation for the temperature-dependent automatic humidity control, the display of the relative humidity level and its laundry drying and timer function, the dehumidifier TTK 66 E provides for a perfect indoor climate at all times.
TTK 66 E in the developed cellar
In order to prevent the formation of unwelcome mould that is dangerous to your health in cellars, hobby rooms or on cool corners and walls exposed to dampness in the first place, we recommend using a dehumidifier continuously and right from the start.
Technical data by comparison

All TTK dehumidifiers in direct comparison:

To find the dehumidifier which exactly meets your requirements, please consult the concise overview of all TTK dehumidifiers from Trotec, which we're providing to you here so that you can compare them directly to each other.

Models which you do not wish to include in your comparison can be easily dismissed with only one click.

Technical data by comparison

A few practical benefits:

  • Hygrostat-controlled automatic dehumidification system with target value preselection between 35 and 85 % RH in steps of 5 %
  • When the set humidity value is reached, the compressor switches off automatically. The fan keeps running. When the value is exceeded, the device is automatically activated.
  • Comfort mode for temperature-dependent automatic humidity control for an optimum room climate at all times
  • Continuous mode
  • Auto restart function to be used in combination with an external timer
  • Display of relative humidity
  • Easily accessible air filter, easy to clean. Filters animal hair, fluff, lint, dust as well as preventing bacterial growth.
  • Laundry-drying function
  • Timer function
  • Automatic air circulation defrost system
  • Connection for external condensate drain
  • 3 fan stages
  • Filling level warning light to indicate a full water tank
  • Overflow protection with automatic switch-off
Room size suitability TTK 66 E

Which device to use for which room size?

Here you find a specific performance chart for the suitability of each comfort dehumidifier. It indicates the room size in combination with an area and volume scale.
Click to enlarge in a new window ...

Product finder for dehumidifiers

We help you find the suitable dehumidifier that meets your requirements!

With our product finder you can quickly and easily choose the ideal dehumidifier for your application scenario.
Click here to go directly to the product finder

Save electricity and money on dehumidification

With our socket hygrostat BH30 you can additionally save money when dehumidifying damp rooms or keeping rooms dry. The programmable switch is simply plugged in between the dehumidifier and socket to regulate the dehumidification process based on the measured humidity level.

Once the desired target humidity is reached, the hygrostat disconnects the device from the mains until dehumidification is required again. By switching off the compressor and fan during standby times, the device's energy consumption is noticeably reduced.

The initial acquisition costs of the BH30 will have been amortized in a minimum of time.

Moreover, many dehumidifiers only offer rough target value setting for optimum humidity. The hygrostat BH30 allows the room humidity level to be adjusted in increments of 1 % from 20 % to 90 % and thus offers significantly more precise target humidity selection.

Thermohygrometer BZ05 and design weather station BZ06

Our recommendation for climate control:

The room thermohygrometer BZ05
Simultaneous display of room temperature, humidity level and time or date as well as an additional feel-good indication.

The design weather station BZ06
Simultaneous indication of room temperature, humidity level, date, time, weekday and symbolic weather forecast. Supplies helpful information for preventing mould growth.

Adsorption, condensation or Peltier dehumidifier?

Trotec, your dehumidification expert, has compiled the most important facts in a reader-friendly overview!

Direct link to “Practical knowledge of dehumidifiers” …


TTK 66 E Dehumidifier show in Trotec online shop

Technical data

Technical data
General information
  Article number
Dehumidification performance
  At 30 °C / 80 % RH [l/24h] 20
  Max. [l/24h] 24
Air flow rate
  Level Max. [m³/h] 168
Recommended room size construction drying
Recommended room size dry keeping
Ambient conditions
  Min. temperature range [°C] 5
  Max. temperature range [°C] 32
  Min. humidity range [% RH] 30
  Max. humidity range [% RH] 90
Electrical values
  Mains connection 220 - 240 V, 50 Hz
  Nominal current consumption [A] 2.3
  Power input [kW] 0.44
  Recommended fusing [A] 10
Electric connection
  Connection plug CEE 7/7
  Cable length [m] 1.6
  Rotary piston compressor
  Reciprocating piston compressor
  Minimum room size [m²] 4
  refrigerant R290
  Amount of refrigerant [g] 75
  GWP factor 3
  CO2 equivalent 0.00022 t
  Pressure suction side [MPa] 1
  Pressure outlet side [MPa] 2.6
Water tank
  Contents in [l] 3
Sound values
  Distance 1 m [dB(A)] 46
  Length (packaging excluded) [mm] 245
  Width (packaging excluded) [mm] 350
  Height (packaging excluded) [mm] 510
  (packaging excluded) [kg] 15
Equipment, features and functions
Automatic defrost system
  Air circulation / electronic
  Hot gas
Automatic dehumidification
  Non-stop dehumidification
  Electronic hygrostat
  stages 3
Condensate tank monitoring
  Container available
  Filling level warning light to indicate a full water tank
  Overflow protection with automatic switch-off
Room air filter
  Readily accessible
  Pre-filter Synthetic fibre
Timer function
  Switch-on time preselectable
  Switch-off time can be preselected
Functions and features
  Laundry drying function
  Comfort button
  Automatic operation
  Continuous operation
  Memory function
  Fan rundown function
  Auto restart function
  Display of the set humidity
  Carry/transport handle(s)
  Plastic wheels
Condensate drain
  Hose connection possible
  Hose included in the scope of delivery
  Recommended hose size [mm] 14
  Condensate pump
Control panel
  LED display
Adjustable air discharge direction
  Swing function
Housing design

 standard equipment

 optionally available

 not available



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