As a kid wevalways had it. Sometimes only one room heater. I was chilling with my father watching tv. Big snow and this noise but old style. Eastern European country. In early 90. It was very popular in every house. Im 38 one and i cannot dleep without it. Its there but blowing cold air. Just to naje a noise
it is a pure ambient sound when i was record this video the smoking alarm make this beep sound. i will upload another video like this without beep sound for you. thank you for regards.