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Combi boilers

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What is a combi boiler?

A combination or combi boiler is a compact single unit that provides both hot water and heating to your home. So there’s no need to take up valuable storage space with a hot water cylinder or cold water storage tank. As they only heat water as and when you want to use it, all our A-rated Worcester Bosch Greenstar models are very cost-effective and energy-efficient. And they all come with the reassurance of a five-year manufacturer’s guarantee, which can be extended to up to ten years.

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A combi boiler placed in between white kitchen units

How does a combi boiler work?

Combination boilers take cold water from the mains and heat it up on demand. So when you turn on a hot tap the boiler fires up and delivers the hot water. And as hot water comes out at mains pressure, you can enjoy a nice powerful shower1.

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Is a combi boiler right for you?

This type of boiler is great for small to medium sized homes or if you don’t need to have many hot taps running at once. Some of the Worcester Bosch combination boiler range can even be installed in a standard sized kitchen cupboard. There’s no need for a expansion or cold water tank in the attic either – which is good to know if you’re thinking about converting your loft space.

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Worcester Bosch logo on a white combi boiler

Spread the cost of a combi boiler

Our finance package means getting a new Worcester Bosch combi boiler can be affordable. You can choose to pay for your new boiler from just £35 a month with up to three years’ 0% interest free credit, where 50% is paid upfront2. We are a credit broker and not a lender.

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A radiator on a white wall, with children's dinosaur stickers on top, connected to a combi boiler

We're here to help you

Choosing a new combi boiler is a big decision and one that you’ll live with for many years - so it’s important to pick the right type and model for your needs. Book a no-obligation survey and our friendly experts will be happy to talk you through all your options.

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The legal stuff

1 The water pressure delivered at the hot tap outlet will depend on the cold water pressure entering the property from the mains. For example, if your cold water supply is 13 litres per minute, you should get 11-12 litres per minute at the hot tap.

2 0% APR Representative over a period of up to three years, other finance options are available. Representative example based on 50% deposit: Boiler value of £2,500, 50% Deposit of £1,250, Total amount of credit of £1,250, Agreement duration of 36 months, Annual rate of interest of 0% PA (fixed), 0% APR Representative, 35 Monthly payments of £34.72, Final payment of £34.80. Total amount payable equals £2,500. Credit is subject to application status. You must be a UK resident aged 18 or over to apply. E.ON Energy Installation Services Limited acts as a credit broker and not a lender meaning we can introduce you to our chosen finance lender, Barclays Partner Finance. Terms and conditions apply.