The heating expansion vessel
Moreover, the safety valve opening, it was often difficult to close properly due to impurities in the water heater.
A system which rotates with an expansion vessel or off deflated encourages slush latter significantly, and heating the slurry of this sign is important for the future problems of installation and assembly of the boiler .
More for those who have hard water, you are going to fill each add a little lime in your installation.
In summary, a defective vessel may degrade dramatically your installation and boiler.
Problems caused by a faulty expansion vessel are numerous and are not trivial. When it does not fulfill its function, the first problem identified is a steady loss of water pressure in the heating circuit (pressure increases on heating and is discharged through the safety valve). In modern boilers are equipped with a safety lack of water, it has the effect of putting the latter in default or to a lack of pressure, either to excess.
Boilers not equipped, it could turn without water and thus may see his circulator grill.
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