Owing to the development of radiant heating/cooling systems and personal ventilation, a new trend has arisen where heat is dissipated to several independent areas, providing custom heat loads; this allows the possibility of creating a zero heating/cooling load environment, i.e., it allows us to deal with the heat load from each heat source before the heat diffuses into the space. This solution enables us to utilize lower level heat sources such as chilled water at high temperatures and heat at a low temperature. It also ensures more uniform temperature distribution and a more comfortable Personal Microenvironment with improved energy efficiency.