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Valsir S.p.a
Waste and water
supply systems, underfloor heating system
and flush cisterns

Energy efficiency for residential ventilation

efficienza energetica vmc valsir

Energy-using products account for a large proportion of the consumption of natural resources.
To limit consumption the European Union has issued directives and regulations such as the delegated regulation 1254/2014, which regulates the labelling of residential ventilation units to indicate their energy consumption.

The energy label allows the user to easily compare the energy efficiency of different products.

Unlike other electrical components, the energy classes on the labels for residential ventilation are determined by one parameter: specific energy consumption, or SEC.
This value shows the energy saving potential of the unit in kWh per m2 per year.

SEC Class
SEC [kWh/a·m2]
A+ (high efficiency) SEC < -42
A -42 ≤ SEC < -34
B -34 ≤ SEC < -26
C -26 ≤ SEC < -23
D -23 ≤ SEC < -20
E -20 ≤ SEC < -10
F -10 ≤ SEC < 0
G (minimum efficiency) 0 ≤ SEC