The useful answer
The 20L is the first Arete Two size with the larger 4.8-litre tank and 255 m³/h maximum airflow. Its published 8.50 L/day at 20°C / 60% RH is a substantial step above the compact models, but the 15.1 kg chassis, higher rated input and 50 dB(A) top setting are real trade-offs.
Current specification
The numbers behind the 20L badge.
- Extraction at 20°C / 60% RH
- 8.50 litres/day
- Extraction at 10°C / 60% RH
- 3.35 litres/day
- Input at 20°C / 60% RH
- 207 watts
- Noise settings
- 38 / 40 / 50 dB(A)
- Maximum airflow
- 255 m³/h
- Tank size
- 4.8 litres
- Dimensions
- 618 × 366 × 272 mm (H × W × D)
- Weight
- 15.1 kg
- Operating range
- 5°C to 35°C
- Humidistat range
- 40% to 70% RH
- Wall mounting
- No
- Drainage
- Continuous drainage via a 12.5 mm garden hose; hose and pump not included
Washable dust filter plus supplied H13 HEPA filter; optional charcoal filter. Air filtration does not remove the need to address a leak, cold bridge, inadequate ventilation or another moisture source.
Transparent energy example
What does 207 W mean in pounds?
At an example electricity rate of 25p/kWh, the published input at 20°C / 60% RH equals about 5.17p per powered hour. Twenty powered hours would be about £1.03.
This is an input calculation, not a bill prediction. A dehumidifier can cycle after reaching its target, and temperature, humidity, fan mode and the moisture source alter runtime. A larger model can also finish a demanding task sooner.
Free calculatorReplace the example with your tariff and scheduleCalculate cost →Decision check
Where this model makes sense—and where to pause.
Compare the 20L with the 12L when deciding whether the bigger chassis and airflow are justified. Compare it with the 25L when recovery speed matters: the two share dimensions, tank size and maximum airflow, while the 25L publishes higher extraction and input.
- Published 8.50 L/day at 20°C / 60% RH and 3.35 L/day at 10°C / 60% RH.
- Up to 255 m³/h airflow and a 4.8-litre tank.
- Same footprint, tank size and maximum airflow as the 25L at a lower published input.
- App control, three fan settings, louvre, laundry mode and continuous drainage.
- The 618 × 366 × 272 mm chassis is much larger than the 10L and 12L body.
- Published weight is 15.1 kg and the model is not wall mountable.
- The top published noise setting is 50 dB(A); compare the intended operating mode, not only the quietest figure.
- A higher input does not by itself prove a higher cost per completed laundry load because runtime can differ.
Range context
How the 20L sits beside the other sizes.
| Model | 20°C / 60% RH | 10°C / 60% RH | Input | Airflow |
|---|---|---|---|---|
| 10L → | 4.19 L/day | 1.38 L/day | 136 W | 140 m³/h |
| 12L → | 5.40 L/day | 1.97 L/day | 136 W | 140 m³/h |
| 20L · this model | 8.50 L/day | 3.35 L/day | 207 W | 255 m³/h |
| 25L → | 10.85 L/day | 3.55 L/day | 250 W | 255 m³/h |
Read the nearest comparison
Do not decide from one profile.
Exact-model questions
What buyers usually need clarified.
How much does the Arete Two 20L cost to run?
Meaco publishes 207 W at 20°C / 60% RH. At an example 25p/kWh, rated input costs about 5.2p per powered hour. Actual cost depends on tariff, conditions, mode, target humidity and compressor duty cycle.
Is the Arete Two 20L much bigger than the 12L?
Yes. The published dimensions rise from 472 × 319 × 237 mm to 618 × 366 × 272 mm, weight rises from 10.9 kg to 15.1 kg, tank size rises from 2.5 L to 4.8 L and maximum airflow rises from 140 to 255 m³/h.
Should I buy the 20L or 25L?
They share the same published dimensions, 4.8-litre tank and 255 m³/h maximum airflow. The 25L publishes higher extraction and higher rated input. Compare recovery speed, expected conditions, price and actual duty rather than assuming the largest is always best.
Source and review trail
All specifications on this page were checked against the current UK manufacturer page. Better Home Climate has not hands-on tested this model, so the page does not use a star rating or claim a first-hand verdict.