Dwelling houses operative energetical claims minimalization by using controlled ventilation systems.

A renovation of a dwelling stock in Slovak republic primary mission is a dwelling environment quality increase and dwelling houses essential operative energetical claims  decrease. Considerable means of an operative energetical claims decrease of these buildings is their airiness reduction, that leads to an infiltration air change under level of sanitariness needful. A heat consumption for ventilation optimalisation beside a collateral dwelling environment quality increase is possible to reach through a controlled ventilation systems applications.