Enter your consumption data here
You may use the dot (".") or the comma (",") as decimal point.
Natural gas (Cubic-metres)
Propane gas (Kilograms)
Heated surface of your house (Square-metres)
Does your heating system include hot water preparation?
Here you see the classification diagram in use until 2014. Below for comparison the new classification diagram. Data are expressed as KWh per square metre per year.
The old classification diagram (until 2014)
The new classification diagram (from 2014)