When I was bleeding the radiators, the one which traps most of the air had steam coming out, not air and you can't touch the rads & pipes they are so hot. I also noticed the grey foam pipe insulation stuff in the utility room has melted where the pipes come in from the outside (Firebird 2.2 oil fired combi boiler in external cabinet).
Is this normal? System pressure cold 1 bar, 2 bars when hot.
Is this normal? System pressure cold 1 bar, 2 bars when hot.