Abstract: The invention relates to an energy saving system for heating and/or cooling of plants, particularly of animal raising plants, having areas suited for the containment of a plurality of living bodies, which system is suited for reducing the spread of infection between the various areas, characterized in that(a) there is provided an air treating unit (2) connected to a heat pump (3) for condensing the water vapors (steam) generated in the areas (1) and for recovery of the so obtained amount of heat with the aid of a vapor condenser;(b) there is provided a dust filter (18) for eliminating the mechanical contaminations in the air of the areas (1);(c) there is provided a chemical filter (7) for reducing, or respectively eliminating the gases that are contained in the air of the areas (1); and finally(d) there is provided a biological filter (16) for the biological filtration of the air exiting from the areas (1).

Abstract: The invention refers to heat transformation process and apparatus for air-conditioning in rooms for a great number of living creatures, particularly buildings for animal breeding, from which the foul air is let out and the fresh air is let in instead, further the breath produced in condensed at a temperature below dew point.The essence of the process according to the present invention is that the temperature of the heat quantity that released in the course of condensation is increased, in a manner known per se, to a level higher than that of the room and the part of the heat quantity that released in the course of condensation, not radiated to the environment is let into a heat absorption medium, then it is utilized in a manner known per se.The essence of the apparatus according to the present invention is that its heat absorber is a thermal pump, preferably the evaporator of a compressor-type cooling circle, and the compressor-type cooling circle comprises an exothermic unit, preferably a condenser.