Combi Boilers

What is a Combination / Combi Boiler?

Combi boilers, often referred to as combination boilers, are a form of condensing boiler and are easily the most popular boiler type, accounting for over 50% of all new boiler sales within the UK.

What are the advantages of a Combi Boiler?

Combi Boilers - as the name suggests - are a highly efficient water heater and central heating boiler combined in a single unit. As a result, Combi Boilers can be more energy efficient to run than other boiler types and can produce an endless supply of hot water.

Combi boilers do not require hot water storage cylinders unlike a conventional boiler which typically requires a copper cylinder in an airing cupboard or elsewhere to store hot water, providing a practical solution if space within your home is at a premium.

Combi boilers are typically compact and can be sited in many different locations such as hung on a kitchen wall. Central heating systems incorporating a Combi boiler have fewer overall components adding to their compact design and their installation is less disruptive and less expensive than that of conventional boilers.

Combi boilers take their cold water feed direct from your mains supply. As Combi boilers do not store hot water they heat water direct from the cold mains supply as you use it, this means hot water is delivered through your taps or showerhead at mains pressure. This may mean that you can enjoy a high pressure "power" shower without the need for an additional pump.

Great Value Combi Boilers only at Online Boilers

At Online Boilers, we stock a wide selection of Combi Boilers brands including Baxi Combi Boilers, Glow-Worm Combi Boilers, Ideal Combi Boilers, Potterton Combi Boilers, Vaillant Combi Boilers and Worcester Combi Boilers.

As a leading supplier of boilers, Online Boilers prides itself on being able to offer some of the most competitive Combi Boiler prices on the internet.

Please see below our extensive range of high efficiency Combi Boilers below:


Don't forget that you will need a flue to go with your boiler.
Click continue shopping to select from the list below of compatible flues and accessories.

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Brands we stock
Baxi Glow-Worm Ideal Potterton Vaillant Worcester Bosch
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