A 2-in-1 Washer-Dryer Dries 61% of What It Washes

If you are weighing a 2-in-1 washer-dryer against two separate machines, check the dry capacity number before the wash capacity number. Across the six current Bosch washer-dryers in our database, dry capacity averages just 61% of wash capacity, ranging from 55.6% to 66.7%. Not one of them can dry a full wash load in a single cycle.

Key takeaways:

• Across six Bosch washer-dryers, dry capacity averages 61% of wash capacity (range 55.6% to 66.7%). None dries a full wash load in one cycle.
• The Bosch Serie 4 WNA13441 has the widest gap: it washes 9 kg but dries only 5 kg (55.6%). The Serie 8 WNC244070 and Serie 6 WNG24442 have the narrowest, drying 6 of the 9 kg washed (66.7%).
• Same brand, same 9 kg wash capacity: a standalone Bosch washing machine (class A, 699-739 EUR) costs 300-310 EUR less, 42-43%, than the matching washer-dryer (class D, 999-1,049 EUR).
• None of the six washer-dryers reaches energy class A, B, or C. The comparable standalone Bosch washing machines of the same capacity reach class A.
• A washer-dryer trades floor space and a second plumbing hookup for lower dry capacity and a lower energy class. That is a real fit for a tight utility space, not an automatic upgrade.

How much less does a washer-dryer actually dry?

A washer-dryer’s spec sheet lists two capacity numbers, not one, because washing and drying are different mechanical jobs sharing one drum. Washing just needs the load submerged and agitated. Drying needs hot air moving freely through every piece of fabric, so the drum has to run partly empty to dry properly, which is why the dry figure is always the smaller one.

Model	Wash capacity	Dry capacity	Dry as % of wash	Price	Energy class	Install type
Bosch Serie 4 WNA13441	9.0 kg	5.0 kg	55.6%	899 EUR	E	Freestanding
Bosch Serie 6 WKD28543	7.0 kg	4.0 kg	57.1%	N/A	E	Built-in
Bosch Serie 8 WNC254A40	10.5 kg	6.0 kg	57.1%	1,299 EUR	D	Freestanding
Bosch Serie 6 WKD28490	8.0 kg	5.0 kg	62.5%	1,369 EUR	E	Built-in
Bosch Serie 8 WNC244070	9.0 kg	6.0 kg	66.7%	1,049 EUR	D	Freestanding
Bosch Serie 6 WNG24442	9.0 kg	6.0 kg	66.7%	999 EUR	D	Freestanding

Take the WNA13441 as the practical case. It washes a full 9 kg load but can only dry 5 kg of it at once. On laundry day that means running the dryer twice, or pulling roughly 4 kg, nearly half the load, out of the drum before starting it. Either way, “wash and dry in one machine” does not mean “wash and dry in one cycle” for any model in this table.

Which of the six has the smallest gap?

The WNC244070 and WNG24442 sit at the top with 66.7%, both drying 6 of the 9 kg they wash. The WNA13441 sits at the bottom with 55.6%, drying 5 of 9 kg. That gap, about 11 percentage points, is the difference between splitting a load roughly in half versus splitting off just a third of it. If dry capacity matters more to your routine than the lowest sticker price, the ratio in this chart is a better filter than either raw number alone.

What does skipping the second machine actually cost you?

To see what a 2-in-1 costs against buying separately, we compared same-brand, same-9kg-wash-capacity pairs: one Bosch washer-dryer against one standalone Bosch washing machine of matching capacity.

Model	Type	Wash capacity	Price	Energy class
Bosch Serie 6 WGG244120	Washing machine	9.0 kg	739 EUR	A
Bosch Serie 8 WNC244070	Washer-dryer (6 kg dry)	9.0 kg	1,049 EUR	D
Bosch Serie 6 WUU28T42	Washing machine	9.0 kg	699 EUR	A
Bosch Serie 6 WNG24442	Washer-dryer (6 kg dry)	9.0 kg	999 EUR	D

Both pairs land within a point of each other: the WNC244070 costs 310 EUR more than the WGG244120, a 42% premium, and the WNG24442 costs 300 EUR more than the WUU28T42, a 43% premium. Both washer-dryers also drop three rungs on the energy label, from A down to D. This is two pairs within one brand, not a market-wide census, but the fact that two independent comparisons land within a point of each other on both price premium and energy-class drop is what makes it a pattern worth planning around, not a fluke of one product pairing.

Is a 2-in-1 washer-dryer worth it?

If you have room and plumbing for two machines, the numbers above favor buying them separately: a class A washing machine plus a standalone dryer will out-dry any washer-dryer’s single-cycle capacity and, on this Bosch pricing, cost less than the combined unit while landing at a better energy class. If you do not, a small German apartment with one hookup and no space for a second appliance, the washer-dryer’s convenience is real and worth the 42-43% premium and the drop to class D. Just plan for the dry-capacity gap: budget for a second dry cycle, or a smaller load, whenever you actually need the full wash capacity dried in one go.

Before you buy, check the model’s real, current label in the EPREL public registry, the EU’s own database behind every energy label, rather than trusting a listing photo. Then run either scenario through our running-cost tool to turn the energy-class gap into an annual euro figure, or line up specific models side by side in the compare tool.