radiator bleeding

There is nothing going wrong with my system, but the pressure is regularly at 2.9 to 3.1 bar. I bled all the radiators letting the air out and the system went down to 2.6. But having come back to the house after christmas it was 2.9 again. i read that it should be between 1 - 1.5. So i...

We have a megaflow cylinder and boiler on the ground floor and have recently had new thermostatic valves fitted on all radiators (apart from the towel rail), radiators balanced, system drained and inhibitor put through. For the first couple of days all was well but we've noticed a bubbling...

Hi first time post, and appreciate some of the steps below that have already been taken are not standard procedure but I was wondering if anyone here had an interpretation or advice. Have a 3 storey house with a system boiler, 17 radiators in total fed by microbore pipe, with boiler (Ideal H24)...