Simple 20 L with a 4 L tank
Swan 20L Dehumidifier (SH16810N)
Short answer: if you want a no-fuss 20 L with a 4 L tank and simple controls, the Swan SH16810N keeps it basic. The catch: Swan doesn’t publish a noise figure, and there’s no dedicated laundry mode.
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If you want a simple 20 L without an app or lots of modes, the SH16810N is Swan’s low-energy model. Swan rates it at up to 20 litres a day, with a 4 L removable tank, an LED display, two fan speeds, a sleep mode and a 24-hour timer. You set the humidity between 40 and 80 %, and it switches off once it gets there.
Swan lists an operating range of 5–35 °C and auto defrost, so it’s a reasonable fit for a cooler bedroom in winter, where a 15 °C minimum would rule some rivals out. The manual lists 310 W. There’s a child lock, a 1.5 m cable and castors. The warranty is one year, plus a one-year extension if you register it.
Here’s the catch: Swan doesn’t publish a dB figure, only that sleep mode has a ‘low noise output’, and there’s no dedicated laundry mode. Swan suggests the lowest humidity setting for drying clothes instead. You can run a drain pipe, but it isn’t in the box. Swan also gives two room sizes, 12–16 m² in the spec table and around 30 m² in the description, and we’d plan on the smaller one.
If quiet nights matter, we’d compare it with the Bosch Dry 4000 or the Duux Bora Smart 20L, which both publish noise figures. For heavy laundry weeks, the Pro Breeze 20L’s 5.5 L tank and laundry mode suit you better.
Published specification
Extraction figures and room sizes are what the maker claims, and they’re often measured at a warm, humid lab point. Your rooms in the UK are usually cooler, so that’s a lower real take. We haven’t run our own lab tests.
- Type
- Compressor
- Claimed extraction
- 20 L (manufacturer claim)
- Room guidance
- Swan gives both 12–16 m² (spec table) and around 30 m² (description); we’d plan on the smaller figure
- Tank
- 4 litres
- Published noise
- Not published as a dB figure
- Operating temperature
- 5–35 °C (Swan)
- Power (manufacturer)
- 310 W (Swan manual)
- Weight
- Not stated on Swan’s product page
- Continuous drain
- Continuous drain possible; hose not included
- Laundry mode
- No dedicated laundry mode; Swan suggests the lowest humidity setting for drying clothes
- Filter
- Not detailed on Swan’s product page
- Warranty
- 1 year, plus a 1-year extension if you register (Swan)
Sources: Swan: 20 Litre Low Energy Dehumidifier product page; Swan SH16810N user manual (Manualsnet).
A good match if
- You, if you want simple touch controls, two fan speeds and a 24-hour timer.
- You, if your windows stream every morning and you want a 20 L that switches off once it hits your chosen humidity.
Skip it if
- You want to know how loud it is before it goes in your bedroom. Swan doesn’t give a dB figure.
- You want a dedicated laundry mode or a drain hose in the box.
What the maker publishes
- 4 L tank with a full indicator and auto shut-off
- Humidity setting from 40 to 80 %, with auto defrost
- Swan lists 5–35 °C, so it handles a cooler room better than some smart rivals
Trade-offs
- No published dB figure, only a sleep mode with ‘low noise output’
- No laundry mode, and the drain hose isn’t included
- Swan’s room size figures don’t agree (12–16 m² vs around 30 m²)
For heated homes, see our best 5 dehumidifiers for UK homes.
Common questions
How loud is the Swan 20L dehumidifier?
Swan doesn’t publish a dB figure. There’s a sleep mode with lower noise, but if quiet nights matter most, we’d pick a model that gives a number.
Does the Swan SH16810N have a laundry mode?
Not a dedicated one. Swan suggests running it on the lowest humidity setting to dry clothes.
What size room is the Swan 20L for?
Swan gives 12–16 m² in its spec table and around 30 m² in its description. We’d plan on the smaller figure.