Best Energy Efficient Dehumidifiers

5 Best Energy Efficient Dehumidifiers (UK 2026 Review)

Waking up to condensation-covered windows or finding that indoor washing is still damp the next morning is a familiar frustration in UK homes. A dehumidifier can help by drawing excess moisture out of the air, making rooms more comfortable and laundry easier to manage. If you use one regularly, electricity consumption is worth considering alongside how effectively it works. This review compares five energy-efficient dehumidifiers for UK homes, including compact models for everyday condensation and machines with dedicated laundry settings.

Energy-Efficient Dehumidifiers for Everyday Moisture Control

How to Choose an Energy-Efficient Dehumidifier

A low wattage figure is useful, but it doesn’t tell you how quickly a machine will remove moisture. Compare these points before deciding:

  • Extraction capacity: The 10L and 12L figures in this review are maximum daily extraction ratings measured under specified test conditions. A machine will usually collect considerably less water in a typical UK home, particularly when the room is cool.
  • Power consumption: Compare wattage alongside moisture removal, not in isolation. A lower-powered machine that takes much longer to do the job may offer little advantage.
  • Humidity control: An adjustable humidistat can stop and restart the compressor as required, rather than running continuously. Around 50–60% relative humidity is a sensible starting point for many homes.
  • Noise and tank size: Check the published noise level if you’ll use it near a bedroom or workspace. A larger tank needs emptying less often, while a drainage hose may be useful if there’s a suitable outlet.

For a particularly tight room, our dehumidifiers for small rooms guide covers space-saving options.

How Much Does a Dehumidifier Cost to Run?

To work out the hourly electricity cost, divide the wattage by 1,000 and multiply it by your tariff’s price per kWh. At an example rate of 25p per kWh, a 150W dehumidifier costs 3.75p per hour and a 200W model costs 5p while drawing those amounts of power. Real costs depend on your tariff and how often the compressor runs, particularly once the room reaches its target humidity.

Room temperature matters too. Compressor dehumidifiers generally remove moisture more effectively in warmer spaces, while desiccant models can work better in colder rooms, although they typically use more electricity. Our dehumidifiers for conservatories guide compares options for rooms that are difficult to keep warm.

Getting Better Results Without Unnecessary Running

Position the dehumidifier where its air inlet and outlet have the clearance specified in the manual. Close the windows and doors of the room while it is working, empty the tank when required and keep the filter clean. A laundry setting can help when drying clothes indoors, especially if air can circulate between garments.

If condensation keeps returning, the cause may be poor ventilation, cold surfaces or a leak. A dehumidifier controls airborne moisture but cannot repair those problems. Our home heating, cooling and air quality guide explains how to recognise the difference.