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How to ensure that the batteries give a maximum of heat

It often happens that the batteries in the apartment are barely warm, while the riser is hot. This is due to the accumulation of dirt in the lower part of the radiators, which prevents the water from circulating normally. The method of cleaning is very simple: it is necessary to put under the bottom of the battery an electric stove; after 20-30 minutes the lower part of the radiator will heat up, the mud will soften and begin to wash out with warm water circulating in the system. Soft tapping with a hammer - and mud layers will start to lag behind the metal and go into the riser. Repeat this procedure with each section of the battery.