This lets warm air escape and invites cooler air in. Ventilating a building with cool air at night can also keep it cool for longer during the day. If necessary, this can be promoted by incorporating inner courtyards – a design that has been used for centuries in warmer climates to keep buildings cool. By combining fans with air conditioning, it’s possible to raise the thermostat setting from 24℃ to 27℃ and still feel cool. Centralised air conditioning systems also often end up cooling us down more than necessary or even waste energy by cooling empty rooms.

Source: Daily News Egypt July 22, 2023 11:16 UTC