2) The heating system does not heat down and down. Check if the radiator is installed upside down when installing the radiator.
3) The main reason for the sound of heating water is low water inlet pressure, too fast return water, resulting in the heating device is not full of water. The solution is to close the water return valve, wait a few seconds, and then open the water valve (open half) to solve.
4) Heating vibration Check if the radiator pendant is loose. If the pendant is not loose, check whether there is a source on the system and cause the radiator to resonate.
Villa Design Heating House
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