As well as renewing and purifying the ambient air, ELFOFresh EVO is a real support for the main heating and cooling generator.
Alone, it can fulfil up to 85% of the thermal demands of the house, whereas a traditional passive recuperator can typically only contribute between 10% (in summer) and 45% (in winter).
In spring or autumn, when the weather is mild, ELFOFresh EVO works mainly in Free Cooling / Heating: it only uses the thermal content of outdoor air for air conditioning, working at virtually zero (energy and economic) cost.
Chosen during design, ELFOFresh EVO allows a smaller generator to be used: less space and cheaper!