Probably, only a few flat owners know that their plastic windows can be used in two modes.
Frankly speaking, not all windows can be used in two modes, but definitely some of them. Some kinds of windows can work in a summer mode and in a winter mode.
In summer it is very convenient that the air can easily get inside because of weakening the pressure between a rubber gasket and an outer part of a frame.
In winter, on the contrary, it is possible to strengthen the pressure and keep your flat warm.
Another advantage of this mode is saving money in the flats and houses without central heating.
If your windows have such an option, you can easily choose between summer and winter modes.
Just turn a special bolt over 90 grades. You can turn it over either to the right, or to the left. It depends on the chosen mode.
Firstly, squeeze the frame for about 1,5 mm and strengthen the pressure. Then you should weaken the pressure.
