Hi all! I am using slab preprocessor to calculate grund temperatures in small housing simulation. However, I have a doubt. In the object GroundHeatTransfer:Slab:BldgProps is recommended run a fisrt simulation to input the indoor air temperatures (12 months). So, I would like to know if this first simulation to catch indoor air should have HVAC on, or without HVAC? (in my case the samll house just have heating in winter, and not cooling at all).
Thank you very much in advance!