How could mains water pressure affect my oil combi boiler?

Question

How could mains water pressure affect my oil combi boiler?

Accepted Answer

The performance of any mains fed hot water system depends on the mains water supply offering an adequate dynamic pressure and flow rate. This is because the flow rate must be sufficient to supply hot and cold water simultaneously. Whilst there maybe sufficient mains pressure, the flow rate is dependant on the size, type and condition of the incoming main. It is important not to confuse pressure with flow. Also, dynamic pressure will be less than the static pressure.