What is a Combi Boiler?

13 May 2015

When the time comes for a new boiler selecting the right one can get confusing, here is an insight into what Combi Boilers are.

A Combination boiler comprises of two main features, a high efficiency water heater that heats water instantaneously when a hot tap or shower is turned on and a central heating boiler to supply hot water to your radiators, a combination of both within one unit.

How does it work?

Combi boilers work as part of closed hot water system, a hot water component within the boiler heats the water as it passes through it. This hot water then gets distributed to where it demanded using the mains pressure.

What are the benefits?

With a combi boiler no hot water cylinder or water tank is required. This is beneficial if you own a small property lacking in space like a flat or a bungalow, or simply if you require more room i.e. for a loft conversion or simply for storage within an airing cupboard then a Combi boiler is probably the best option for you, an increasingly popular choice in UK homes.

The major advantage of a Combi boiler is the savings seen on the hot water cost as it only heats the water instantly on request when you turn a tap etc. Away from this the fact that there are no tanks being fitted or replaced and less pipe work to install means installation is quicker and easier reducing fitting cost and initial fees.

Combi boilers are well known for providing hot water on request, this is only compromised if numerous hot water outputs are being used together i.e. using a shower and running a bath at the same time could reduce the water pressure and heats levels.

What to look for...

The key things to look out for when selecting a Combi boiler for your home are the hot water flow rate as this gauges the level of power at which the water can be distributed around your home and the central heating output as this shows the level of energy the boiler is able to generate to supply to your home. The decision on these specifications should be decided by the size of your property and for the demand of hot water and central heating.

There are a huge range of Combi boiler brands for you to choose from but some of the main boiler brands can be found on our website:

There's something for homes of all shapes and sizes, so contact us today for more information!