If you have an annual maintenance contract for your boiler, perhaps you have received a notice from your technician. It's normal. The annual maintenance of the boilers is obligatory, as well as one or two sweeps of the flues of the house. You need to prepare your central heating system for the winter. Different problems can occur. It is good to know how to identify them. The radiators talk. If some of them are cold, you may need to purge them. In some cases, a replacement is necessary: it is necessary to equip the radiator, then to install it. If your radiators are not equipped, install thermostatic valves. Finally, different products help maintain the system in good condition.
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