Ventilate briefly, keep grilles open
Keep ventilation grilles open and air rooms in short bursts with the heating turned down, to avoid both mould and wasted heat.
Do it yourself
Sources checked on .
Ventilation & dampLevel 1 · HabitCost: FreeA few minutes
Cold, poorly ventilated rooms (below about 10 °C) are prone to condensation and mould. Keep ventilation grilles open and use the extractor fan when cooking and showering.
If the home has no ventilation system, open the windows wide twice a day. In winter, turn the heating down while you air the room and keep it short (no more than about 15 minutes), so the walls don't cool down.
Details
| Impact | Not rated · The cited sources don't give a size for this saving, so we don't guess. How we rate impact |
|---|---|
| Estimated saving | Not quantified in the sources; benefit is mainly avoiding mould and wasted heat. (confidence: low) |
| Who acts | You (tenant) |
| Needs landlord's agreement | No |
| Type | Action |
| Constant or subject to change | Constant · Good practice that barely changes with new laws, prices or services. |
Do this together with
Sources
- Besparen op uw energieverbruik (in Dutch) · Vlaamse overheid (vlaanderen.be) (official source) · checked on
- 100 tips om energie te besparen (in Dutch) · Leefmilieu Brussel (official source) · checked on