Ventilate deliberately during the heating season
Why this can help
A brief effective air change can limit heat losses compared with leaving a window tilted for long periods while heating. Adequate ventilation remains necessary.
One possible next step
Plan a purposeful air change instead of forgetting a tilted window beside an active radiator.
What changes the outcome
Match ventilation to occupancy, moisture and outdoor air quality. Reduce the nearby radiator while the window is open where appropriate, and restore normal settings afterward. No fixed duration fits every room.
The action
One possibility
Leaving a window tilted for a long time
Another possibility
Providing a suitable brief air change
A brief effective air change can limit heat losses compared with leaving a window tilted for long periods while heating. Adequate ventilation remains necessary.
Plan a purposeful air change instead of forgetting a tilted window beside an active radiator.
Sources and calculation references
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