I’m in Lithuania and every year there are a few days when the city disconnects hot water to people (different areas on different days, so like not the whole city all at once) in order to do some tests on pipes. They check to see if the pipes can handle another year of service and fix any leaks or weak points so that they wouldn’t burst in winter for example. They do these tests in late Spring – early Autumn and during them the affected area is left without hot water. The company that is responsible for this claims that all Europe do it the same way, that it’s unavoidable. I want to ask you if that is the case where you live?
Edit: thank you all for answers. This seems to be another fun Soviet “gift” that will be expensive to get rid of. But now I know that it’s not in “all of Europe” and I will be able to ask about it in the municipal election debate or something.