Dehumidifiers can be used as a temporary method of condensation control in buildings. A dehumidifier will remove water from the air, by passing the humid air over a cold surface. The removed condensation water is either collected in a container that required frequent emptying or in large more expensive dehumidifiers, the water is discharged directly to a drain.
In most cases, dehumidifiers should be considered a temporary method of controlling condensation. Dehumidifiers deal with the effects of condensation, but do not remove the cause.
- Dehumidifiers can cost up to a £1.00/day to run, compared to 1p/day for a whole home ventilation system.
- Dehumidifiers use ~300w of energy, compared to 5w for a whole home ventilation system.
- Dehumidifiers require frequent emptying of the water collection container
- Dehumidifiers can be noisy
- Dehumidifiers do not provide fresh air
- Dehumidifiers only remove moisture from the area in which they are situated and therefore more than one dehumidifier may be required.
Usually the most effective and economic solution for excessive condensation is the installation of a whole home ventilation system, such as the Drimaster 2000 of Flatmaster.