This question depends on how the planning of housing facilities is determined. If the plan is to install the solar water pipes in the flue, there will be no problem. If the plan is not so, the developer will install them. solar water pipes into the flue privately. If this is a violation, you can complain to the local Housing and Building Department for resolution.
If solar is completely installed, three wires will be ejected from the flue. One is an electric heating wire. When the water temperature is low and there is no sunlight, it is used to start the system. Electric heating and water temperature heating. The other is a sensor. Lines are used to detect water level and temperature. There is also a connection line for the heating tape, which is used to activate the heating tapeand defrost it when the pipes are turned on. are frozen and blocked in winter. Depending on what is installed in your home, there should be two.