To cool your home during hot weather, there’s no need to go broke buying an air conditioner: here’s how to lower the temperature of your apartment or house, without an air conditioner and even without a fan.
1. Close the curtains during the day, open the windows at night
First reflex to adopt: imitate countries where it is hot!
Before evacuating the heat, avoid letting it enter. Equip your windows with shutters inside or outside.
During the day, remember to close all the windows and close the Velux curtains to avoid the magnifying effect. Leave the house completely closed all day!
In the evening, following the course of the sun, reopen them all, starting with those where the sun no longer hits and let a draft flow all night, until morning. It should be ventilated with fresh air as much as possible.
This ventilation strategy is the basis: the first step before considering anything else to cool your apartment without air conditioning , at 0 Watts of consumption!
There are anti-heat curtains, made of thermal insulating material, which filter up to 80% of infrared rays and will help the temperature not to rise.
To cool a room, you hang a wet sheet in front of your half-open window, and spray water when it starts to dry. The evaporation will absorb the heat and cool the room. It’s also time to clean the tiles with plenty of water!
Simply wiping the floor with a damp mop will help lower the room temperature and cool your home. Even the simple installation of basins on the ground will help to refresh the room!
2. Use your fan wisely
A fan alone does not cool a room, it simply stirs ambient air and does not relieve the feeling of heat, although it has the advantage of facilitating air circulation. It gives a feeling of freshness when you pass it because it blows on the residual humidity of your body (perspiration) but be careful: you must not sleep with a fan !
Overnight, the fan will dry out your skin, stir up allergens and, while reducing the surface temperature of your skin, disturb your natural thermoregulation. The body will not know that it is hot!
To properly cool a room , place a bottle of frozen water just in front of it or a basin filled with ice cubes at its feet: the fan will diffuse the cool air floating above the basin or bottle, and the flow of air will be cooler. You will have your homemade ecological mobile air conditioner! You can then aim for the edge of the bed.
You can also use a fan to speed up the cooling of a room in the evening. “Aim” for the outside of the room. The fan will draw in warm air from the room behind it and blow it outside. The new air entering through the window will therefore be cooler.
There are pedestal fans or table fans. Airflow, sound level, remote control: keep up to date with new developments, you may be surprised, especially by these Dyson fans, without blades.
3. Build a light reflector
There is no secret: the element that particularly favors the heating of your home is the sun’s rays which hit directly on the panes of the windows.
To cool the accommodation, it is necessary to prevent them from entering.
If you don’t have shutters on your windows or want to protect them as much as possible from the sun, you can easily and quickly design light reflectors. These reflectors will reflect the light, which will prevent heat from entering your home.
The light-reflecting paper can be purchased by the meter, it is both useful to avoid heat loss in winter and to avoid letting it in in summer!
4. Use the evapotranspiration property of plants
Plants practice what is called evapotranspiration: when it is hot, they pump the water contained in the soil and “sweat” it when they are in the sun.
As said above, evaporation is your friend! The air is more breathable when there are plants on or near the walls exposed to the sun. Of course, you have to choose the plants carefully. Even if you do not have the possibility of climbing plants, judiciously placed potted plants can also lower the temperature of your home, and provide some shade on a balcony and terrace. They also have a purifying effect.
Don’t forget that you are also preventing the sun’s rays from hitting the ground, and therefore causing it to accumulate heat!
5. Take refuge in the cooler rooms
In southern countries, the interiors of houses are white. Avoid dark rooms, put yourself in light rooms. Easier said than done if you live in the attic or don’t have a big apartment… but the feeling of freshness is different.
6. Turn off the power to appliances you don’t use
Rather than fighting against the heat that comes from outside, fight against the one that comes from inside!