A study of the Centre Scientifique et Technique de la Construction (Belgium) shows the percentage of heat loss in an average family home.
26% 26% ceiling
outside walls
20% 15%
windows by 13%
floor ventilation
isolating walls, mansard roof and saves up to 20% fuel.
The windows double or triple pane thermal significantly improve the comfort allowing savings beyond 20% fuel.
broad eaves in summer limit the penetration of sunlight falling on the greenhouse effect inside your home.
A house of 400 m2 built on concrete of 15 cm. thick, with large windows, no insulation, heating requires 42,000 W of power. It requires 22,000 W. suitably isolated
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