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Experimenting with Air Conditioning

I live in a Minergie, which, in theory, means that I never need to worry about climatisation because the building keeps itself warm in winter and cold in summer. In practice the features that make a flat fantastic winter make it awful in summer. Good in Winter Large windows, in winter allow heat radiation in, so you use the sun to heat your apartment. From Spring until Autumn it has the opposite feature.

Keeping Cool in a Heat Wave

We are currently in a heat wave. During heatwaves my velux heat up in the afternoon sun and radiate heat both into the apartment during the day but also at night after the sun has set. I have found that during a heat waves it is wise to close the blinds and close the windows as soon as it is hotter outside than inside. When it is hotter outside than inside closing windows keeps the apartment slightly cooler, but not much cooler.