Save electricity when drying laundry

Dry laundry in an environmentally friendly and natural way –
air drying saves electricity

Fresh laundry

The original way of drying clothes is hanging in the fresh air. Items of laundry flutter loosely in the wind on a clothesline, releasing their moisture into the environment and thus contributing to a good climate. Ideally, the bright sun ensures sterility. Air and warmth give the textiles a uniquely fresh scent and no electricity is used. This form of laundry cleaning is still recommended in many energy-saving tips to this day.

Unfortunately, this idyll is not always feasible . It assumes that a garden, terrace or balcony is available to dry the laundry and requires dry weather. In an apartment building in the city, it is therefore often not possible to dry laundry in an energy-saving way.

Is the electric dryer an alternative?

Many people resort to an electric tumble dryer because they see no way of drying their laundry without electricity. This applies in particular to families with children and correspondingly large quantities of laundry. 

At first glance, the electric tumbler also makes laundry care easier because it saves time for hanging and removing textiles. The good ventilation when drying in the device also simplifies ironing. But using an electrical device also has many disadvantages .

Electric dryers use electricity and are expensive

Housewife operates clothes dryer

Did you know that electric drying devices are one of the largest consumers of electricity in the home ? Electric laundry drying also has a negative effect due to the following aspects:

  • High acquisition costs
  • Increase in electricity costs due to the additional electricity consumption
  • Some textiles shrink
  • Maintenance effort and repair costs
  • Noise development in the company
  • heavy wear and tear on clothing

In addition, not all textiles are suitable for electric dryers. It is therefore always necessary to hang up individual items of laundry on the line or the clothes horse.

What happens to textiles in the dryer?

Woman checks washing recommendation

Textiles lose moisture comparatively quickly in the tumbler. A drying program lasts between two and four hours, depending on the setting selected. To achieve these short drying times, high temperatures are necessary. However, these put a strain on clothing and other textiles.

Some synthetic materials can be completely destroyed in the process. High-quality materials such as silk , wool or linen would matt or shrink in the dryer at the high temperatures. Synthetic and mixed fibers can stick together and holes can appear.

Some materials even run the risk of catching fire . This applies in particular to padded components such as shoulder pads or bra cups. Printing foils can melt and lace fabrics can be destroyed. 

Rhinestones, sequins and appliqués also suffer from the temperatures in the dryer. The adhesive may also come off. This reduces the selection of items of clothing and laundry that are actually suitable for electric dryers.

Electrical drying devices are rarely necessary

Taking into account the criteria mentioned, it only makes sense to purchase a dryer if there is no other possibility of drying. In a small apartment in the city center with a correspondingly small bathroom, a tumbler or a washing machine with an integrated dryer are often the only options. 

In addition, in many residential buildings there is no drying floor or laundry room. Since many items of clothing are not suitable for the electric dryer, a clothes line, a rotary clothes dryer or some other drying facility is always necessary. 

As a result, the capacity of the electric dryer is often not used and additional unnecessary electricity costs arise. Due to these criteria, the purchase of an electric rotator is not worthwhile in most cases.

Save energy – dry laundry without electricity

Air drying saves electricity. The hanging of the laundry in the fresh air always depends on the weather. It is impossible when it rains and it can be lengthy in winter. However, it is also possible to save energy when drying in frost and dry weather.

Saving energy in winter: air drying through sublimation

Physics describes the phase transition of a substance into another physical state as sublimation. In the case of water, it is about the transition from a solid, frozen to a gaseous state. This process is also known as freeze drying. This can also be used when drying clothes. 

Laundry in winter

Wet fabrics first freeze on the line in frosty conditions. If the laundry is frozen, the state changes from ice to steam without the laundry getting wet again. The wind simply blows the water vapor away from the laundry. Garments become pleasantly soft and have a fresh scent, all without consuming electricity.

Save electricity when drying laundry in the apartment

If an opportunity to dry clothes outdoors is not available, the indoor drying rack can be an alternative. If the bathroom is big enough, it will find its place there. A guest room or separate dressing room are also good places to set up the drying rack so that it does not interfere.

Clothes horse in the room

Alternatives to the drying rack:

Space-saving alternatives to the conventional wing drying rack are foldable clotheslines that can be stretched above the bathtub, for example. This also has the advantage that water can drip into the tub. If the clotheslines are not needed, the system simply pulls them in with the help of a tension spring and they are discreetly hidden in a small box on the wall. Some drying racks are designed vertically so that the laundry is hung on top of one another and the rack takes up little space.

And what about the moisture in the room?

Mold growth along the baseboards

Drying laundry in the apartment is unpopular with many landlords. Since the moisture escaping from the laundry cannot completely escape, there is a risk of mold forming in the home. To reduce this, the room temperature would have to be increased and at the same time well ventilated. However, this contradicts the goal of saving energy and consequently increases heating costs .

Mold can also form in poorly ventilated dry cellars and attics. This risk is particularly high when the drying rooms in apartment buildings are heavily used. Just the open window or ventilation in the drying room are not enough to prevent moisture damage and mold. Rather, they can additionally increase the humidity of the room air when it rains and when the air humidity outside is high.

Drying clothes in damp rooms also leads to long drying times . The consequences can be the formation of unpleasant smells in the textiles and the formation of mold spores in the fibers.

Moisture can also develop in the home when using an electric dryer. Only models with exhaust air technology completely dissipate the moisture to the outside. In apartments, however, condenser dryers are mainly used because there is usually no device to divert the water vapor to the outside.

The solution: drying clothes in a good indoor climate


If you want to dry laundry in the house without the risk of mold forming in an energy-saving manner, the use of a high-quality air dehumidifier – so-called regenerative dryer – is the ideal solution. The dehumidifier removes moisture from the room air, ensures a healthy indoor climate, shortens drying times and saves energy.

How does the dehumidifier reduce humidity?

Because the dehumidifier removes moisture from the room air, it prevents the formation of mold and other moisture damage in the dry cellar, in the attic or in the apartment. The water produced during the condensation drying process collects in a container and can therefore be easily removed. By a further use for watering flowers or cleaning the house , the water undergoes a practical and resource-saving re-use.


High-quality regenerative dryers produce not only the ideal room climate, but also clean air. The modern devices use special particle filters to remove dust, pollen, mold spores and other particles from the room air . A regenerative dryer therefore offers various advantages at the same time:

  • Reduction of humidity in the room air
  • Purification of the indoor air
  • Protection of laundry from unwanted buildup
  • positive effects for allergy sufferers
  • Save electricity costs

Of course, regenerative dryers also need electricity. Nevertheless, you can save a lot of energy with this drying method compared to standard tumble dryer devices . The connected load of a typical tumble dryer is between 0.8 and 2 kW! A regenerative dryer, on the other hand, only needs 0.3 to 0.4 kW per hour – and also keeps the room mold-free !

Drying textiles properly – saving energy

All in all, if you want to save energy when drying clothes, you should heed the following tips:

  • Textile fabric dries with air and sun on the rotary clothes dryer
  • First spin items of laundry thoroughly in washing machines
  • Carefully dry sensitive textiles in the spin dryer
  • Laundry dries slowly and poorly in damp room air
  • Regenerative dryers create an optimal room climate and help save electricity

If you want to save on drying your laundry and take responsibility for the environment, you can hang textiles on the line, a stand or the rotary clothes dryer. To avoid the consequences of high humidity in drying rooms, the use of a regenerative dryer is ideal. This saves you a lot of energy when drying compared to using a conventional tumble dryer. 

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