By turning the screw in one direction or another, you adjust the window support pressure.
Thus, by choosing winter mode, the seal is more compressed against the frame.
That is to say, it presses more and there is less air passing through.
The sealing is improved.
The consequence is that the interior of the house or apartment cools much less.
We can therefore turn down the heating a little while keeping the same interior temperature…
It’s as if the insulation in the house is getting better.
And we save money!
