Are condenser tumble dryers better than ventilated
Condenser dryer or exhaust air dryer - a comparison
How an exhaust air dryer works
The exhaust air dryer has the simplest structure. It is based on the physical principle that warm air can absorb more moisture than cold air.
The laundry is rotated in the dryer in a drum through which warm air is passed. The warm air strokes the laundry and absorbs the moisture. Then the air is directed outside and new air is warmed up again.
How a condenser works
Here too, warm air is used in the drum. In order to remove the moisture from the air, the condenser dryer cools it down again afterwards.
The cooler air can no longer hold the moisture. The moisture therefore condenses on the cold surface and the condensed water is led into a container.
Then fresh air is heated again, fed in and passed through the drum, and then also dehumidified again in the condenser. This process continues until the desired and set degree of dryness of the laundry is reached.
When the air cools down, the condenser dryer also generates waste heat that is released to the outside.
Condenser dryer with heat pump
With these dryers, heat pump technology ensures that the heat generated during condensation is not lost to the outside, but is used again to heat new fresh air.
When the air cools down, the heat is transferred again and again to the freshly supplied air, so that much less heat has to be generated. That lowers energy consumption.
Criteria for choosing a dryer
In order to decide which dryer is best for you, you should simply check a few criteria for yourself.
Exhaust air dryers need a way of releasing the warm, moist air to the outside. You therefore need at least a window at the installation site that can remain open in winter during the dry season - or you have to make a wall breakthrough in order to conduct the dryer moisture to the outside.
If that is a problem, it would be better to use a condenser dryer. It does not need an exhaust air route to the outside. To do this, the condensate container must be emptied regularly.
Exhaust air dryers are the most favorable. Condenser dryers are a bit more expensive, the models with heat pump technology are the most expensive.
In addition to the acquisition costs, you should always also consider the energy costs in the long term. Exhaust air dryers require the most electricity, condenser dryers a little less.
The energy consumption of heat pump dryers is around half of the other two variants. With these devices, you can reduce power consumption by around 50 percent. That can also be a criterion. The higher acquisition costs are quickly amortized with frequent use.
A dryer is usually used because there is no time to let the laundry dry on the line. The running time is therefore not insignificant.
Condenser dryers usually take a little longer than exhaust air dryers - heat pump dryers can take 3 - 4 hours, depending on the moisture level of the laundry, until the laundry is dry.
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