Your boiler must be at the correct pressure for the hot water to circulate properly between the radiators, especially if they are on different floors.Generally, the ideal pressure is between 1 and 2 bars, but this may vary from boiler to boiler.Ask your heating engineer. Check the pressure gauge. A quick look at the pressure gauge is enough to check your boiler's pressure.
Pressure Reducing Valves (automatic water feeder valves
Change the water pressure in your home by adjusting the water pressure reducing valve to recommended house water pressure.
How do I adjust my boiler pressure properly? – Energuide
How to Adjust Water Pressure of a Water Pressure Reducing Valve . If you're finding water pressure to be too high or too low, you may need to adjust your water pressure reducing valve. Bob walks you through this quick-fix, from the tools you'll need to step-by-step procedures.
Watch out: Increasing the building water pressure by adjusting the pressure regulator (or a pump pressure control switch) will not fix a poor water delivery rate from the source (municipal water main or local private water pump), but if the pressure was set too low to start with you may see an improvement by this adjustment.
Nov 10, 2016 · old set up with water leaking out relief valve,drained extank and replaced relief valve reset water feeder to water lower pressure.. wayne gas conversion bu
May 09, 2016 · Usually is not only the water flow to trigger the boiler, but a low temp on primary water. On most boilers primary water is kept 20°C above DHW. My 15 years old Hermann can handle as low as 2,5L/min, so I think you have a setting problem on the boiler' computer. EDIT: According to your boiler specs, the minimum flow rate for your boiler is 1,9