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Tumble dryers
LG RT90X9B
9 kg heat-pump tumble dryer with EU-label energy class A (2023/2534 A-G scale) and condensation efficiency class B. Energy per cycle is the EPREL figure for the standard cotton programme; noise is the sound power level in dB.
≈ €66/year to run · CHA estimate at Germany's average tariff · calculate your own
Every spec below is sourced from the manufacturer product page, verified 20 Sept 2026, never invented.
Key specs
The specs that decide it — everything else is in the full sheet below.
9 kg
heat-pump
A
0.79 kWh
60 dB(A)
Features & connectivity
Connectivity & smart features
Programmes
Show all 18 programmes
Technologies
Manufacturer wording (12)
Feature text exactly as the manufacturer prints it. Listed for reference, not verified as a claim by this site.
- Kindersicherung
- Automatisch Selbstreinigender Kondensator
- Trommelbeleuchtung
- ECO Hybrid System
- Dual Inverter Wärmepumpentechnologie
- Doppeltes Flusensieb
- Indikator Wasserstand
- Art der Wärmequelle: Elektrische Wärmepumpe
- Invertermotor
- LoadSense
- Sensor Dry
- Smart Pairing
Feature data from the manufacturer page, read 2026-09-20. A feature is listed only when that page states it for this model; a missing chip is not a statement that the feature is absent.
Full specification sheet
Capacity
How much it holds — load, volume, place settings, tank size.
- Capacity
Maximum dry-load weight. Higher dries more per cycle.
- 9 kg 44th pct in category
Energy & running cost
Energy label, consumption, water use and noise.
- Energy class
EU 2021 energy-efficiency label, A (best) to G (worst). Ranks how little energy the appliance uses for its class. A wins.
- A 79th pct in category
- Noise level
Airborne acoustic noise emission from the energy label. Lower is quieter.
- 60 dB(A) 79th pct in category
- Noise class
Noise-emission class (A quietest to D loudest) from the EU energy label.
- A
- Energy per cycle
Energy used per standard cotton cycle. Lower is cheaper to run.
- 0.79 kWh 82th pct in category
- Condensation class
How well the dryer captures moisture rather than venting it into the room, A (best) to G.
- B 23th pct in category
Physical
Size, weight, finish and how it installs.
- Width
External width — check against your installation gap.
- 60 cm
- Height
External height.
- 85 cm
- Depth
External depth (excluding handles/hoses unless stated).
- 66 cm
- Weight
Product weight. Relevant for handling and for cordless vacuums where lighter is better.
- 57 kg
- Colour
Standard finish colour.
- Mattschwarz
- Installation
How it installs (freestanding, built-in / integrated, etc.).
- freestanding
Features
Programmes, smart control and convenience functions.
- Wi-Fi / app control
Whether the appliance connects to a companion app over Wi-Fi.
- Yes
- Dryer type
Heat-pump (most efficient), condenser, or vented. The key differentiator — heat-pump dryers cost far less to run.
- heat-pump
- Sensor drying
Moisture sensors stop the cycle when clothes are dry, saving energy.
- Yes
- Refrigerant
Refrigerant used in the heat-pump circuit (e.g. R290, R134a).
- R134a
- Wi-Fi module
Built-in, available as a retrofit module, or explicitly not available. Stored only when the manufacturer page states it for this model.
- Wi-Fi built in
- App ecosystem
The manufacturer app platform this model connects to (Home Connect, LG ThinQ, SmartThings and so on).
- LG ThinQ
- App name
The app name as the manufacturer prints it.
- ThinQ
- Remote start
A programme can be started from the app.
- Yes
- Energy monitoring in app
The app shows the energy consumption of this appliance.
- Yes
- Technologies
Named technologies the manufacturer states for this model (heat-pump drying, zeolite drying, pyrolytic cleaning and so on); each is defined in the glossary.
- Self-cleaning condenser, Interior light, Heat-pump drying, Inverter / brushless motor, Sensor drying
- Digital & AI features
Digital and AI functions the manufacturer states for this model; AI is only listed when the manufacturer itself uses the word.
- Child lock, AI adaptive programme
- Programmes (named)
Programme names exactly as the manufacturer prints them.
- Sportbekleidung, AI Dry, Allergy Care, Auffrischen Bettdecken, Baumwolle, Feinwäsche, Daunenjacken-Auffrischung, Bettdecken, Pflegeleicht, Eco, Mix, Schnell 30, Korbtrocken, Zeitprogramm, Handtücher, Turbo Dry, Warm Trocknen/Lüften, Wolle
Frequently asked questions
What is the capacity of the LG RT90X9B? +
The LG RT90X9B has a capacity of 9 kg.
What energy class is the LG RT90X9B? +
The LG RT90X9B carries an EU energy label rating of A.
How loud is the LG RT90X9B? +
The LG RT90X9B has a rated noise level of 60 dB(A).
How much does the LG RT90X9B cost to run per year? +
CompareHomeAppliances estimates about €66 per year in energy costs, based on the LG RT90X9B's own energy-label figures at Germany's average household tariff (€0.4/kWh, as of 2026-07). This is a CHA-computed estimate, not a manufacturer-stated figure — use the running-cost calculator to plug in your own tariff.