Boiler Pressure When Heating On

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15/9/2020  · If your systems pressure appears to be too high, by that we mean is exceeding 3 bars, you need to check what’s happening before it damages your system/home. In most cases boiler pressure increases due to water expansion which occurs naturally in the heating …

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1/8/2019  · Every boiler is built with a pressure gauge to monitor the amount of pressure in your system. Typically, your boiler pressure should read between the 1 and 2 bars. You should know that when your central heating is turned off and you are not running any hot water, boiler pressure should be at approximately 1 bar.

When the heating is turned on your boiler pressure should be between 1.5 and 2 bar. Most boilers will highlight this area on the pressure gauge in green to help you see if the needle is pointing to the correct amount of pressure. Some boilers will also have the critical zones below 1 and above 2 marked in red to help you identify any issues.

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