120 L drum

Miele TSD 643 WP (tumble dryer 9 kg heat pump dryer): our review

9 kg Colours

Brand: MieleOur methodology

Overall scoreiRatings calculated by comparing verified specifications in our catalogue. No hands-on assessment. Comparison of documented models, not an exhaustive market survey. n is the number of models compared for each criterion. No hands-on testing.
8.8/10
Documentation: partialNot confirmed by a verified source: Bosch range.

Local offers are being verified.

Scale from 6.5 to 9.6, the actual range of our scores. The dotted line shows the average for analysed models. Comparison of documented models, not an exhaustive market survey. n is the number of models compared for each criterion. No hands-on testing.
Load capacity: 8.6/10: 9 kg, ahead of 46% of the models in the catalogue · n = 37. Average for analysed models: 8.1/10Drum volume: 8.8/10: 120 l, ahead of 64% of the models in the catalogue · n = 28. Average for analysed models: 8.1/10Equipment: 9.1/10: 7 of 35 tracked features documented, ahead of 69% of the models in the catalogue · n = 42. Average for analysed models: 8.1/10Load capacity8.6/10 · avg. 8.1Drum volume8.8/10 · avg. 8.1Equipment9.1/10 · avg. 8.1
Our verdict in 30 seconds

The TSD 643 WP makes a convincing case for bigger laundry days

A roomy cotton dryer with heat pump technology and built-in installation. The capacity makes sense for households that regularly fill the hamper. We would settle the cabinet fit and water-emptying routine before ordering.

Verdict

8.8/10

We would give the TSD 643 WP a dedicated laundry space

A folded stack of towels belongs on the shelf before the next wash arrives. We recommend this dryer for households that need generous cotton capacity and appreciate heat pump efficiency. It ranks among our strongest overall choices. Give laundry a destination.

Our verdict: Choose it for a planned laundry space and regular larger loads. The Whirlpool CWD86MWBRFR dryer is better suited to a location near bedrooms and has a similar overall score.

One caveat Avoid it if the available spot puts everyday dryer noise beside the couch or a sleeping area. Its ordinary sound rating is what holds us back from recommending it for every home.

Review by Romain Brunel, founder of Tumble Dryer Picks

Who it's for

A separate laundry room brings its strengths into focus

  • Busy households with substantial cotton loads
  • Homes with a dedicated laundry area
  • People ready to schedule laundry ahead

This model suits a household where school clothes, bath towels, and sheets keep the washer busy through the workweek. A dedicated laundry area gives its generous drum a useful job, while heat pump drying suits people willing to plan ahead to reduce energy use. It is particularly appealing when indoor air drying keeps delaying the moment everything returns to the closet.

Less suitable if

Skip this model if your usual loads are small enough that a generous drum brings little practical benefit. It also asks for a properly planned built-in space and a household routine that accommodates collecting and emptying condensed water.

Dimensions

Leave room for the cabinet and the open door

Width59,6 cm
Depth64,3 cm
Height85 cm
Drum volume120 L
WeightNot specified

Specifications

Miele TSD 643 WP puts cotton capacity at the center

Load capacity9 kg
Width59,6 cm
Depth64,3 cm
Height85 cm
Noise level64 dB
Electrical power1100 W
Drum volume120 L
Your searchTumble dryers
Drying typeHeat pump
Energy class, A to G labelC
Energy class, old labelA+++
InstallationBuilt-in
ColourWhite
FeaturesDelay start
ProgrammesQuick
Appliance or accessoryTumble dryer
Condensation efficiency class on the current labelA
Condensation water drainageTank to empty
Drain hoseIncluded
Door hinge positionLeft

Key strengths

This heat pump dryer has room for the weekly buildup

  • Large cotton capacity for bigger household loads
  • Heat pump drying reduces electricity use compared with vented drying
  • Roomy drum lets laundry tumble and loosen wrinkles
  • Delay start offers scheduling flexibility
  • Drain hose included

Drawbacks

Where the TSD 643 WP asks for compromise

  • Average sound output restricts placement beside living areas
  • Condensate tank needs manual emptying
  • Heat pump drying generally takes longer than vented drying

Our scores explained

Every model on the site is scored on the same criteria, using the same scale: its ranking among models with a verified value for that feature. Last place scores 6.5, first place 9.6, with the rest scored in proportion to their rank. Here's how this model's scores are calculated.

Two model counts: the rank and average include models with a page on this site and a score for this criterion; the calculation compares the model with all catalogue models whose specification is verified, with or without a page. A score assigned at publication may remain without a verified specification, so the first count can be higher.

Load capacity: 8.6/10

Miele TSD 643 WP scores 8.6/10 on this criterion. Across the site's 37 product listings with a score for this criterion, the average is 8.1: above average, 5 out of 37.

View calculation
Common baseline: last place in the ranking6.5
Load capacity: 9 kg ; 17 rank lower, 4 rank higher, 16 are tied (including this model), among the 37 models in the catalogue with a verified value for this specification+2.1
Load capacity score8.6/10

Calculation: (17 + 16 ÷ 2) ÷ 37 = 67.57% of the ranking; 6.5 + 67.57% × 3.1 = 8.6/10, rounded to one decimal place.

Drum volume: 8.8/10

Miele TSD 643 WP scores 8.8/10 on this criterion. Across the site's 28 product listings with a score for this criterion, the average is 8.1: above average, 6 out of 28.

View calculation
Common baseline: last place in the ranking6.5
Drum volume: 120 l ; 18 rank lower, 5 rank higher, 5 are tied (including this model), among the 28 models in the catalogue with a verified value for this specification+2.3
Drum volume score8.8/10

Calculation: (18 + 5 ÷ 2) ÷ 28 = 73.21% of the ranking; 6.5 + 73.21% × 3.1 = 8.8/10, rounded to one decimal place.

Equipment: 9.1/10

Miele TSD 643 WP scores 9.1/10 on this criterion. Across the site's 40 product listings with a score for this criterion, the average is 8.1: above average, 1st out of 40.

View calculation
Common baseline: last place in the ranking6.5
7 features recorded out of 35 tracked: 29 rank lower, 0 rank higher, 13 are tied (including this model), among the 42 models in the catalogue with a verified value for this specification+2.6
Equipment score9.1/10

Calculation: (29 + 13 ÷ 2) ÷ 42 = 84.52% of the ranking; 6.5 + 84.52% × 3.1 = 9.1/10, rounded to one decimal place.

Features recorded: Drying type (Heat pump), Installation (Built-in), Features (Delay start), Programmes (Quick), Appliance or accessory (Tumble dryer), Condensation water drainage (Tank to empty), Drain hose.

The retailer does not specify: Bosch range, Loading type, Availability, Made in. These features are not counted.

Overall score: 8.8/10, the average of the 3 scores above.

Our full methodology

Detailed analysis

When the forecast stays gray and clean laundry keeps arriving, indoor drying can turn every available surface into household equipment. The Miele TSD 643 WP offers a more organized route through that backlog, pairing heat pump drying with generous room for cotton loads. Its appeal is straightforward: get the laundry put away while keeping energy use in mind. Choosing where it belongs takes a little more thought.

The TSD 643 WP dryer gives larger cotton loads room to move

A rainy Saturday can leave bath towels hanging around long after the bathroom needs them back. With a cotton capacity of 9 kg, this dryer has room for bigger loads, making it a plausible match for a household whose hamper rarely stays empty. Does your washer handle a similar cotton load? Compare those allowances before planning to move everything straight across, because synthetics need a substantially smaller load.

The 120 L drum also gives laundry space to tumble and loosen wrinkles. That room matters when cotton sheets and bath towels make up much of the weekly wash. Leave clothing enough space to move instead of treating the drum like a suitcase before vacation. Capacity is the draw here. We like the combination of a generous cotton allowance and a roomy drum for busy households. The drying rack can finally stop auditioning for a permanent role in the living room.

Heat pump drying gives the TSD 643 WP an energy advantage

If your apartment has nowhere to connect an outdoor exhaust duct, heat pump drying removes that particular installation obstacle. This technology recirculates heated air and collects moisture instead of sending it outdoors through a vent. It generally requires less electricity than vented drying, with longer drying as the tradeoff. For towels that can wait while you get on with dinner, that can be a sensible exchange.

The current energy label places this model in class C on the A to G scale. Its older A+++ label belongs to a different scale and cannot be translated directly into the current letter. Those letters are useful context, but your laundry routine still matters to household energy use. We would choose the technology for its lower energy appetite, then leave room in the schedule for drying instead of relying on a hurried cycle before heading out.

Your TSD 643 WP dryer needs a planned home for its water

Condensed water goes into a tank that needs emptying. In a small home, that means thinking about the trip to the sink before deciding where the appliance belongs. A full laundry basket already gives you enough to carry. A drain hose is included, so confirm the connection arrangement in the installation instructions before deciding how you will handle the collected water.

Condensation efficiency is class A on the current label, a separate measure from its energy class. That describes how effectively moisture is collected, rather than how quickly your laundry will dry. Give the water routine a convenient place. A tank you can reach comfortably is easier to remember when dinner is cooking and another basket needs sorting. For filter care, follow the appliance manual and remove lint after every cycle. These are small recurring jobs, but they belong in your plans alongside loading and folding.

Will this built-in dryer fit the space you have?

A laundry cabinet can swallow a surprising amount of space before the door even opens. This model is specified for built-in installation, with a width of 59.6 cm, depth of 64.3 cm, and height of 85 cm. Use those measurements to check the opening from side to side, front to back, and beneath any shelf. Then check the installation instructions for the clearance and ventilation the finished enclosure needs. Matching the appliance dimensions is only the starting point.

The hinge sits on the left, so picture yourself transferring wet laundry with the door open. Will the surrounding cabinetry leave you a comfortable path? Door movement belongs in the measuring session. For installation above a washer, have the retailer confirm compatibility and the required stacking kit before ordering. Settle delivery, installation, warranty support, and return arrangements during that conversation, too. Getting those practical details straight helps keep arrival day focused on fitting the appliance into its intended home.

Our Miele TSD 643 WP review favors utility rooms over bedroom walls

At 64 dB, sound output falls in ordinary dryer territory, so a position beside the couch deserves careful thought. That is the main reservation here: an average noise level makes this a less convincing choice for shared living spaces. A separate laundry room gives its capacity and heat pump technology a more comfortable setting. This model ranks among the best overall in our assessment.

The Whirlpool CWD86MWBRFR is better suited to a location near bedrooms, making that alternative worth considering when a sleeping area borders the laundry space. The Whirlpool CWD86MWBRFR has a similar overall score, so the reason to switch is the location you need to accommodate. For everyday scheduling, this Miele offers delay start and a Quick program. Delay start lets you plan when drying begins; the Quick option gives you another program to choose according to the load instructions.

Romain Brunel

Analysis by Romain Brunel

Founder of Tumble Dryer Picks

We write tumble dryer comparisons and guides using public data, manuals and buyer reviews. We explain technical specifications and highlight missing information to help you choose according to your needs.

Updated on October 20, 2026

Frequently asked questions

Your practical questions about this dryer before ordering

Does the TSD 643 WP need an outdoor exhaust duct?

No. This is a heat pump dryer, so it collects moisture instead of exhausting damp air outdoors through a duct. Its built-in installation still needs the space and ventilation specified in the installation instructions.

Can the TSD 643 WP take a full washer load?

Its 9 kg allowance applies to cotton at full load and gives larger loads useful room. Compare your washer's cotton allowance before transferring everything together. Synthetic fabrics have a substantially lower load allowance, so the cotton figure should not guide those loads.

What does the roomy drum offer for everyday clothing?

The 120 L drum gives laundry room to tumble and loosen wrinkles. That is useful space when sorting a larger wash into suitable loads. Follow garment care labels and program loading instructions when deciding which clothes can dry together.

What maintenance should I plan for?

Plan to empty the condensate tank and clear the lint filter after every cycle, following the appliance manual. A drain hose is included; confirm how it should be installed before planning your water-emptying routine.

At a glance

Miele TSD 643 WP

8.8/10Overall score

Key strengths

  • Large cotton capacity for bigger household loads
  • Heat pump drying reduces electricity use compared with vented drying
  • Roomy drum lets laundry tumble and loosen wrinkles
  • Delay start offers scheduling flexibility

Before you buy

  • Average sound output restricts placement beside living areas
  • Condensate tank needs manual emptying
  • Heat pump drying generally takes longer than vented drying
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