I built a 140m2 KFW70 house in 2016. My gas consumption was 10,500 KWH in one year for heating and hot water. Room temperature in the living room and bathroom always around 22-23 degrees.
Other rooms around 20 degrees.
No night setback and underfloor heating throughout the house.
Kfw50, 120m2, underfloor heating (no setback or other "optimization"), geothermal energy (deep drilling), values for heating/cooling and hot water. Temperature everywhere 22-23°.
KfW50, 120m2, underfloor heating (no setback or other "optimization"), geothermal energy (deep drilling), values for heating/cooling and hot water. Temperature everywhere 22-23°.
1st image current month and the previous 12
2nd image annual balance 2017 (interior finishing still in January here)
The last 12 months here were somewhat colder than the year before: 1700kWh total consumption of electric energy for heating and hot water March 2017-March 2018; KFW70 built in 2014, approximately 200sqm heated area (some basement rooms not directly heated).