Question-and-Answer Resource for the Building Energy Modeling Community
 | 1 | initial version |
In the case of ground coupled small to medium house, it might be that the default ground model is cooling down the house. You can start by changing the Site:GroundTemperature:BuildingSurface to the year average outside air temp which looks to me like 22 ish degrees Celsius.
If you further read in the above link to the Input Output Reference you will find that it is better to use the Slab or Basement program to calculate ground temperatures.
I would recommend on using the foundation Kiva you can read more about that here.
