Dehumidifiers
- Posted On: 12 Mar 2026
Dehumidifiers
Dehumidifiers are a great temporary solution to help tackle condensation and damp. They pull moisture from the air, collecting water in a removable tank. There are different sizes and models of dehumidifier, and if you need help with a specific model just get in touch!
How to use a dehumidifier:
- Set the humidity level – the ideal level is between 30-50% humidity. The standard setting for most dehumidifiers is 40% so if yours doesn’t have this control, 40% will be the default setting.
- Pick the right spot – They should be positioned to allow a flow of air around the machine, so make sure it’s not against a wall and leave a gap of at least 20cm.
- Close windows and doors – If the damp or condensation problem is in just one room, the dehumidifier will work more efficiently if you close the doors and windows while it is running. Leaving windows open will make the dehumidifier work harder to draw moisture from a larger area.
- Empty the tank regularly – There is a built-in automatic shut off when the water level gets too high, so make sure you empty the tank at least once a day.
- Keep it clean – Keep the machine free of dust. If it has removable filters these need to be cleaned once a month using a vacuum.
When to use:
Dehumidifiers are very energy efficient and are relatively low cost to run so you can use them for up to 12 hours a day without worrying about it affecting your energy allowance. If you are concerned about the extra energy usage you can keep a log of how many hours it has been in use, for consideration if you go over your annual allowance.
For an easy to use guide on dehumidifiers visit:
🗒️Using Your Dehumidifier
For full guidance on condensation, damp and mould, please visit: