Combination Boilers – How they work?

Combi boilers are very popular with over 70% of homes choosing to install them over hot water or system boilers.

What are Combi boilers?

They are highly efficient water heaters and central heating units, meaning they heat your home and provide you with hot water, without the need for a separate hot water tank.

There are many features which have made Combi boilers the most popular

The Pro’s & Con’s of a Combi boiler

The Benefits of a Combi boiler

  • They are more efficient, replacing your boiler with a newer combi boiler could save you up to £300 per year.
  • Installations are cheaper as they are less complex compared to traditional heating systems.
  • Unlimited supply of hot water on demand.
  • Combi boilers take up less space as there is no need for a separate hot water tank.
  • Cold water is safe to drink as it is fed from the mains supply. Some (not all) traditional systems may store cold water in a tank.
  • This will help the Energy Performance Certificate (EPC) rating of your home.
  • Less likely to suffer from pressure issues or air locks as the water comes directly from the mains.
  • Cleaner systems, less sludge build up as the water comes directly from the mains.

The Disadvantages of a Combi boiler

  • You need to have good mains pressure.  You will need to check this before you go ahead with the installation.
  • You will only be able to one bath or shower at one time.
  • If your Combi boiler breaks down then you will be left without hot water in addition to central heating.
  • Combi’s aren’t compatible with power showers, due to the pressure level being set by the water mains.

If you are interested in replacing or installing a Combi boiler, get in touch on 01603 898904 for a free Survey.




Subscribe to our updates

Complete the form below and get renewal heating news and updates delivered directly to your inbox.

    Accredited Installer