ticking

We have central heating pipes in the wall of our bedroom that are plastered in. When the heating is on they make an intermittent but frequent ticking noise which is loud enough to wake us up. I have read that with ticking pipes under floorboards the best thing to do is put felt around them, but...

All, I have not long had a new Baxi Platinum 28 Combi ErP boiler fitted. All was working well bar a few pressure cut outs recently and also there is a noise coming either the boiler or the pipes / rads. I done some checking and the noise is a rattling, ticking / pinking noise. It seems most...