Got a worcester greenstar 30si. Could anyone tell me what the press should be when the central heating is on, it was just over 2.5 bar last night and making a low hum. Its for a friend at work who has just had a complete central heating system fitted, i thought it could be air and told her to vent all the rads but apparently her plumber told her it didn't need doing for over a year! any advice greatly appreciated.
Boiler Pressure
- Thread starter dollyg
- Start date
On a new system that is constantly used, I always tell my customers to check for air in the rads about 3-4 days after I have gone and if no problems then once a week for about 2-3 weeks.
The pressure should be just over 1 Bar cold rising to about 2 when hot.
Is it a very large heating system? If so it may have needed an extra expansion vessel added.
The pressure should be just over 1 Bar cold rising to about 2 when hot.
Is it a very large heating system? If so it may have needed an extra expansion vessel added.
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