Thermal comfort

The expected thermal comfort in rooms is a significant factor when choosing and installing a heating and ventilation system. In cooperation with the Technical University of Dresden studies were undertaken on the thermal comfort of the AIRCONOMY® system. A special calculation formula designed at the University, based on linked simulations, in the appropriate way:

  1. the thermal performance of the building envelope,
  2. the operational performance of the system,
  3. the system controls and
  4. finding the room flow volume allowance.


Thermally comfortable room climate
The thermally comfortable room climate is described as the relationship in the occupied zones of a space, indicated by the unconscious reactions and conscious observations:

  • minimal thermoregulatory effort of the organism for preservation of a constant core body temperature (reflective reactions).
  • effortless, undetectable heat emittance.
  • Subjective experience of well-being, i.e. neutral climate assessment (not experiencing a climate as warm or cold).


Two fundamental comfort criteria are distinguishable:

  1. Global thermal comfort
  2. Local thermal comfort
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Calculation assumptions

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Comfort criteria

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Example illustration of a room

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Habitation zone

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The illustration shows that the white demarcated inhabited zone consistently lies in the category A. This means that the AIRCONOMY® system will achieve a very high level of comfort. This is achieved by the unique symbiosis of mild pleasant radiant heat from the underfloor heating and the warm fresh air contribution in the window area of the room.

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