It is also important that we immediately shut the main water valve that shut off the water supply to taps and various water bodies existing in the home, and thus we prevent its further flooding.In new homes closing the main valve is not a problem, but in the case of older homes may be harder for us to determine which of the existing valves is the main water valve and an additional difficulty may be the same turn.
In such a situation called our plumber will also replace the old water valve installed in our house.
A boiler is a closed vessel in which water or other fluid is heated. The fluid does not necessarily boil. (In North America the term "furnace" is normally used if the purpose is not actually to boil the fluid.) The heated or vaporized fluid exits the boiler for use in various processes or heating applications,12 including water heating, central heating, boiler-based power generation, cooking, and sanitation. Źródło: https://en.wikipedia.org/wiki/Boiler
The most important is to create a home network, water and sewage, and then connect it to the next sanitation.
Before putting a home network plumbing to use it is still well tested by plumbers who want to home owners have not had any problems with it.