<html><head></head><body><div style="font-family: Verdana;font-size: 12.0px;"><div>Dear all,<br/></div><div><br/></div><div>I´ve simulated an two hour heating off-period for my Type 56 (year of construction 2002). To keep it easy, i was just working with 1 Zone and a total volume around 500m3. <br/></div><div><br/></div><div>My problem is that the roomtemperature decrease during the off-period is extremly high. For example: It decreases from 20°C to 17°C (of course depending on Tambient) in the space of one or two hours. I think this decrease is much to high. In this case TRNSYS is not simulating the thermic inertia right ?! <br/></div><div><br/></div><div>Does anyone have already experiences with this problem and knows if my decrease is correct or seriously wrong ?! In my case i think it´s wrong because of both the huge volume (without internal walls etc) and the missing thermic inertia. <br/></div><div><br/></div><div>Best,<br/></div><div><br/></div><div>Michael <br/></div></div></body></html>