HVAC Contractor

What leads to a noisy central heating system?

It’s that occasion of the year once more when we switch on our central heating for the initial time. Though, don’t be fooled into considering a noisy heating system is common.

There are quite a few reasons for noisy central heating system and noisy boiler system. And identifying these things before time will make your mind relaxed.

The most typical sound coming from a central heating system portrayed is the sound of banging or knocking. Indeed, these noises repeatedly sound much more aggressive than they might be, particularly if you aren’t definite of the reason.

Ask the heating and air expert regarding what happens when you don’t change the ac filter.

What causes a noisy heating system?

Below are some of the core reasons for noisy central heating system:

  1. Boiler kettling

A severe but less probable cause for a noisy heating system is boiler kettling. Occurring in hard water regions, boiler kettling is where limescale increases in the heat exchange and limits the water flow, leading to a rise of pressure. The water turns to vapour as the pressure comes, but when the vapour turns back into the water, a booming or banging noise happens.

  1. Expansion of pipes

At times, noisy central heating comes down to the simplest of problems. As the pipes in your house start to heat, they spread out, that can cause them to shift or distort a little. Such movement in the pipes can indicate that they start to bang against a wall or piece of furniture located closely. Just shifting the piece of furniture to some extent and placing expanding foam near the pipes must resolve the problem. Still, if your pipes have been run via wooden roof joists, this can be primarily problematic to the solution. Find the services of a trained plumber to expand the opening that the pipes go through, and then fill it by using expanding foam.

  1. Air bubbles

While air bubbles get caught in the water in your radiator, they are likely to produce a clicking noise. Luckily, when this occurs, an easy way out could be sought. To prevent the noise, you should discharge the air trapped in the radiator, and you can do this with a radiator bleeding key. Just switch off your central heating system, and wait for the air bubbles to meet at the tip of the radiator for about 10 minutes prior to discharging them with the key.

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