[KellyMP]

I bleed my radiators last year and the pressure when cold dropped to 0, been using it throughout the year with no problems but just found out how to repressurise it which i've just done when i turned the heating off tonight.

Anyone know what kind of a difference this will make or what low pressure actually does? cause all my heaters have been working fine for the last year, i thought they were heating up pretty quickly anyway.