The museum of Delphi is situated on the side of Mount Parnassos. It is a free standing building, located next to the archaeological site of Delphi. The site does not contain any other built structures; therefore no features obstruct the solar penetration or the natural ventilation of the building.
The building is fitted with mechanical ventilation, supplemented by openable windows. The original mechanical installation of the building was replaced by an air to air HVAC system equipped with heat recovery. The number of people visiting the Museum at any one time is variable and seasonally dependent. For this reason, the ventilation system includes demand control that allows fresh air to be supplied to the occupied zones only when the carbon dioxide concentration reaches a preset level. In this way, indoor air quality is maintained at an acceptable level even when the exhibition areas are crowded while allowing energy savings to be achieved.