The different types of central heating

A simple Google search for the term “types of central heating systems” can yield a plethora of confused results. There’s a lot of material on a lot of different heating concepts, boiler kinds, and plumbing procedures, all with a lot of jargon. I mean, it can’t be that difficult, right?

You’re right, it’s not.

Let’s start with the most basic details.

How many types of central heating systems are there? Well, three types of central heating can be found in modern homes.

They are as follows:

  • Conventional Central Heating— Also known as gravity-fed systems.
  • Combination Boiler Systems – Boilers that heat both gas and water at the same time.
  • Pressure System Central Heating – This system circulates water around your home using mains pressure.


Do you want to learn more? Throughout this blog, we will dissect each sort of central heating system and ensure you understand everything there is to know about types of central heating.

Conventional Central Heating

The most prevalent sort of central heating system in the home used to be the conventional system. Modern alternatives have reduced usage, particularly in new construction, but conventional systems can still be found in many older homes and buildings.

The central heating system is unplugged and the cold water is controlled by mains pressure. A hot water tank is located high up in the residence, usually in the lofts or a cabinet on the top floor, to provide hot water for heating and taps. This water is then heated in the boiler.

By the natural pull of gravity, water can flow down into the lower floors through your plumbing, into radiators, and out of taps once it has warmed up.

Combi Boiler Systems

If conventional systems were the standard in previous decades, the combi boiler now holds that position. Because of its effectiveness and compactness, this type of central heating system has gained popularity in recent years.

Combi boilers heats water at the source.

The combi boiler generates heat as soon as you turn on the hot water tap or switch on the boiler. There is no hot water storage because all heating is provided by the appliance at the point of use.

Pressurized Central Heating Systems

The operation of a pressurized central heating system is similar to that of a combi boiler. Instead of heating the water in a hot water tank, the mains water is heated directly, reducing waste and conserving space over conventional systems. The pressurized system, on the other hand, differs from the combi boiler in that the water is heated by a water cylinder rather than the boiler itself.

A water cylinder is a tank that heats water as it passes through it. It is a tiny machine that can be conveniently incorporated into the house. As a result, hot water may be dispensed at mains pressure from several taps at the same time, making it ideal for large homes.