How A Central Heating System Works Back to Blog

How A Central Heating System Works

A guide to your central heating system

It’s safe to say the average homeowner has no idea how their central heating system works. When the engineer comes round for installation or repair, it can be a list of jargon that would make anyone’s head spin. Here’s a little guide to some terms and how they all interact with each other.

First thing’s first – What makes up a heating system? There are a number of components, and here they are:

  • Boiler
  • Programmer
  • Pump
  • Thermostats
  • Radiators
  • Hot water Cylinder
  • Diverter Valve

But here’s the question – How do they work together? Well, the boiler heats your house, as well as your water tank, while your programmer’s job is to turn the heating system on and off at the times you decide. After it’s been turned on, the boiler is controlled by the thermostats. The diverter valve controls where the hot water flows to, depending on your needs. It can either go to the radiators or the hot water cylinder. If you need heat for both, the valve will decide the happy medium of flow.

In your plumbing system, the water that goes to and sits in your boiler is different than that which circulates your taps. They will either be two entirely separate flows, or the water will feed the taps until it drains into the boiler system. At this point, the water will cycle through the central heating system indefinitely until it’s drained by an engineer. This can happen for a number of reasons, including age or inefficiency. This service is often referred to as ‘power flushing’, because the radiators and system are bled and all the congealed junk taken out, improving flow and efficiency.

If you need any central heating or power flushing services, contact us for the very best the UK has to offer.

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