If your boiler is old, inefficient, or you are looking to replace your current heating system, you may be wondering what type of boiler is right for your home. One of the most popular options is a combi boiler. But what exactly is a combi boiler? And what are the benefits of having one? Well, here at Charter Heating, we are leading boiler, heating and gas experts. As a result, we have produced this guide to everything you should know about combi boilers.
So, what is a combi boiler?
A combi boiler, short for combination boiler, is a type of boiler that provides both heating and hot water directly from the same unit. Unlike traditional boiler systems, a combi boiler does not usually require a separate hot water cylinder or cold water storage tank. Instead, when you turn on a hot tap, the boiler heats the water directly from the mains, providing hot water whenever you need it. The boiler also provides hot water to your radiators when you turn your heating on, all from one compact system.
There are a number of benefits to having a combi boiler. These include:
- Instant hot water – Combi boilers heat water directly from the mains when you turn on a hot tap, meaning you don’t need to wait for a hot water cylinder to heat up. This can make them a convenient option for many homes.
- Saves space – Because a combi boiler does not require a separate hot water cylinder or storage tank, it can free up valuable space in your home. This makes them particularly suitable for smaller properties.
- Good efficiency – Modern combi boilers can be highly efficient, helping you to reduce the amount of energy your home uses and potentially lower your heating bills.
For any boiler advice, or central heating questions, we are the team for you here at Charter Heating. And we can even install new boilers and central heating systems too. For more information or advice, get in touch with the team today.

