Point: 9 What climate is to be assumed for the HGT 680 Kd exemption?
As all requirements relate to the reference climate, the reference climate must also be applied here for all locations in Austria.
The following HGTs result for the reference climate for the individual months in the heating period:
October 321 HGT; November 475 HGT; December 614 HGT; January 667 HGT; February 540 HGT; March 471 HGT; April 311 HGT.