Hello, after changing radiators from cast iron to bimetal. In 4 sections, a rumble of water appeared with both the battery turned on and off. it’s impossible to sleep. Those who installed batteries and controls. the company says they don’t know anything. Probably this is not the diameter of the pipes. You do not tell me if there are experts who can help, the situation is problematic. Thanks Svetlana
Hello Svetlana! First of all, the responsibility lies with those people who installed this system for you. Only qualified specialists can give you an exact answer and solve your problem directly on the spot. Perhaps the problem lies in the fact that they did not let air out of the radiators. Try to check whether the radiator is completely heating and to bleed air from the system through Mayevsky taps. You can read in more detail here.
Good luck solving your problem!
Design of heating radiators
