Increasing the energy efficiency of your home, means making it more comfortable to live in and cheaper to run it. These are the main reasons why you should consider about all methods that will help you achieve it. Depending of the location of the building and the climate in general, the window placement should avoid or receive as much as possible sunlight and heat.  There is a difference between the heat and the sunlight that a winter sun and the summer sun gives to the home interior. The side of the wall where the window should be located is also very important -east, west, north, south. Several tips about this, in the link bellow.

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