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 this, the system needs to be drained, sections of pipework cut out, new pipe work fitted, and the system refilled.

Why does my central heating make a whistling noise?

The limescale settles and restricts the water flow. So, the trapped water inside the heat exchanger gets too hot. As the water starts to boil, steam and expand, the boiler makes a kettling noise similar to a whistling kettle.

What to do if your central heating system is rattling?

Copper pipes need to be properly secured in order to prevent them from rattling too much. A simple solution, that should fix the problem of banging pipes, is to squash some felt around each pipe under your floorboards.

Why do I hear strange noises coming from my furnace?

Some of the reasons why your heating system might be making strange noises include: More likely than not, your furnace or heating system will make a specific type of noise to alert you to a potential problem. Some of the more common noises you might hear from your heating system or hot water heater include the following. 1. Furnace Banging