Ventilation and air heating treatment installation in a building comprising several housing units

An installation for ventilation and heat treatment of air in a building comprising several housing units, of the type comprising a double flow ventilation system with a ventilation unit blowing air taken from outside the building into the living quarters:

• drawing rooms, bedrooms, etc. of the various housing units, and a ventilation unit (5), having the same characteristics as the blowing unit, performing air extraction from the functional quarters:
• kitchens, bathrooms, etc. of the air blown into the functional quarters, the air being conveyed to and extracted from each housing unit via ducts communal to the building, the installation being characterized in that it comprises, at the connection of each housing unit to a pair of ducts (6, 7), these being, respectively, a blowing duct and an extraction duct, an individual thermodynamic unit (8) dedicated to the housing unit in question and over which the ventilation airflow passes, the evaporator and the condenser of this unit being arranged one on the blowing flow and one on the extraction flow, respectively.