Why does my central heating make a knocking noise?
Why does my central heating make a knocking noise? A normal heating system will take anywhere from 10-30 minutes to heat up completely. If you’re experiencing noises such as tapping, banging and knocking that comes from the floor boards and walls for this period only; this is likely to be due to the natural start up process of the heating system. What to do if your central heating system is making humming noises? If the pipework is already secured with pipe clips, it’s likely it needs to be rerouted to stop the knocking and humming noises you’re hearing. To do...