If you're struggling with damp walls, condensation, or musty smells, a dehumidifier can make a huge difference - but one of the most common questions people ask is:
"Are dehumidifiers expensive to run?"
The short answer: No - modern dehumidifiers are energy-efficient and cost surprisingly little to run, especially when compared to the damage and discomfort caused by excess humidity.
How Much Does It Cost To Run A Dehumidifier?
Most energy-efficient dehumidifiers for home use (rated between 150W and 300W) cost around 5-15p per hour to run, depending on your electricity rate and model size.
For example:
- A mini dehumidifier running for 8 hours a day uses about 1.2kWh of electricity, using roughly £0.36/day.
- A 12L-20L compressor dehumidifier may use 200-300W, costing around £0.50-£0.80 per day.
That's less than a cup of takeaway coffee - while protecting your walls, furniture, and air quality every single day.
What Affects A Dehumidifier's Running Cost?
- Room Size: Larger rooms need higher-capacity dehumidifiers (eg, 12L-25L/day).
- Humidity Levels: Damp rooms make the compressor work harder until humidity stabilizes.
- Usage Time: Most units don't need to run 24/7 - using an auto mode or humidity sensor saves power.
- Energy Efficiency Rating: Look for models with energy-saving compressors or eco modes for best performance.
- Temperature: In cooler spaces like garages or basements, desiccant dehumidifiers work better than compressors.
How To Save Energy When Using A Dehumidifier
- Use auto mode or smart humidity control (keeps humidity between 45-55%)
- Keep windows and doors closed while operating
- Empty and clean the filter regularly
- Use in combination with heating or air circulation for faster drying
- Choose an energy-efficient dehumidifier with a timer and auto shut-off
Why It's Worth It
Running a dehumidifier is an investment in your home's health. It presents:
- Mold and mildew on walls
- Condensation on windows
- Damage to paint, wallpaper, and furniture
- Allergens and musty odours
- Costly repairs due to damp damage
Final Verdict
So, are dehumidifiers expensive to run?
Not at all - especially when you consider the savings from reduced home damage, fewer health problems, and lower heating costs (since dry air warms up faster).
Modern energy-efficient dehumidifiers from brands like Geepas make it easy to maintain the perfect indoor climate - quietly, affordably, and effectively.
