As I'm responsible for Fibaro Technical Support in Germany, i thought it might be good idea to validate that statement, this is what the Fibaro Dev Team / Product Owner told me: Fibaro Intercom has been designed to fulfill the UL60950, which specify (simplified) that device need to run at 40° ± 2 °C ambient temperature for 21 days with no issues. The heat sink itself can get even up to 80° - 85° (and more if exposed to extensive direct sunlight), above that the Intercom will turn off some intern