When a plumbing breakdown happens at home, we freak out, and the first thing we do is call a plumber running. It does not matter if it is a weekend, a holiday or at night. Panic spreads, and then what
18 Money-Saving Plumbing Tricks
Hot Water System: What Is a Differential Pressure Valve
The differential pressure valve is calibrated, installed in bypass between the flow and return circuits of a heat transfer liquid system.
It is both a safety element for the installation, a comfort element for the occupants, and a source of energy savings.