Now that the weather has warmed up in the UK, you likely aren’t using your central heating as much as you were during the winter, if at all. This makes it a good time of the year to carry out maintenance on your central heating system.
But what maintenance should you do and why?
Boiler services
One of the most essential appointments to book in is your annual boiler service to ensure that it is working as it should and safe. A boiler service is relatively straightforward and, assuming that all your boiler’s components are in good working order, shouldn’t take long.
Typically a heating engineer will carry out a visual inspection of the inside of your boiler to look for any obvious signs of corrosion or leaks, while also making sure that the controls work and that any other components are working correctly.
If they notice any potential issues with your boiler, they’ll explain what those are and how much it might cost to get them fixed
Power flush for your central heating system
A power flush is essentially a deep clean for your entire central heating system. The idea is to remove any sludge and grime that has built up in your pipes and radiators over the years to help your central heating work more efficiently come the winter.
This also helps keep your boiler in good condition, as it removes the sludge – which is known as magnetite as it is composed of iron oxide – and debris that might travel along your pipes and into the boiler, potentially impacting its efficiency.
A power flush can take anywhere from a few hours to a whole day for a heating engineer to complete, which is why it’s a good maintenance task to book during the summer months when you won’t need your heating on to stay warm.
Do you need specialist equipment to do a power flush?
Yes, you need a specialist machine known as a “pumping station”. This machine both removes the dirt and sludge as well as pumping fresh water into your central heating system.
Depending on how long it’s been since your last power flush, your heating engineer may need to spend some time working on any radiators that are particularly blocked up with grime.
This may require your heating engineer to use tools to help release sludge that is stuck to the inside of your radiators. Once they are confident that the worst of the contamination, they will flush your whole system with a special chemical neutraliser.
Finally, they will add a central heating inhibitor to your system, which will help to prevent sludge from building up in your central heating system again.
How can you tell if your heating system needs a power flush?
One of the telltale signs that your central heating system is due for a power flush is cold spots on your radiators, or only the tops of the radiators heating up while the rest of them remains cool.
Other indications that a power flush would benefit your central heating system and boiler are that you’re having to bleed your radiators frequently and that the water that comes out of your radiators when you do so is discoloured.
You may also notice that your boiler and radiators are noisy when the heating is on, or that your central heating system takes a long time to heat up.
If you’re in any doubt, it’s best to contact a heating engineer who can assess your central heating system and advise whether you need to carry out a power flush.
As we’ve mentioned, now is the ideal time to do so as you won’t need your central heating during the day, which will give your heating engineer time to get it back to its best well ahead of the colder autumn and winter months.
What are the benefits of having a power flush for your heating system?
The main benefit is simply keeping your central heating system in good working order. If you leave the sludge to build up in your radiators, it can damage your boiler, leading to costly repairs.
A buildup of magnetite can also prevent your heating system from working effectively, which means you will be using more energy to generate the same amount of heat. Therefore to ensure your heating system is as energy efficient as possible, a power flush is a good idea.
This will also mean that your heating warms up quicker and that you get hot water more quickly too.