Combi Boilers

Shop high-performance combi boilers from trusted brands at Toolstation, including Vokera, Ideal Boilers, Vaillant, Viessmann and Baxi. Whether you need a small combi boiler for your home or an industrial combi boiler for the workplace, we’ve got plenty of products available.

What Is the Best Combi Boiler?

If you’re wondering how to choose the right combi boiler, there are a few factors to consider. As a general rule, the more hot water you use, the higher the kilowatt rating you’ll need. For example, if you live in a flat or house with up to ten radiators and one bathroom, a 24-27kw combi boiler is the ideal choice. For homes with up to fifteen radiators and two bathrooms, a 28-34kw combi boiler is best. Large homes or businesses with up to twenty radiators and two or more bathrooms should opt for a 35-42kw boiler. Combi boilers are often the most energy-efficient choice in any central heating system, with options available to suit all budgets and home configurations. Check out our Boiler Buying Guide for more details on these and other boilers.
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                                Baxi Baxi Baxi 600 Series Combi Boiler 24kW - 30204 - from Toolstation ( 10 )
                                Baxi Baxi Baxi 600 Series Combi Boiler 30kW - 46540 - from Toolstation ( 16 )
                                Ideal Boilers Ideal Boilers Ideal Logic Max Combi Boiler 30kW - 82539 - from Toolstation
                                £1207.48
                                ex. VAT £1006.23
                                Each

                                Based on Logic+ range the Logic Max Combi combines the ...Read more

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                                Vokera Vokera Vokera Vision Plus Combi Boiler 30kW - 75459 - from Toolstation ( 1 )
                                Baxi Baxi Baxi 800 Series Combi Boiler 36kW - 54359 - from Toolstation ( 5 )
                                Worcester Bosch Worcester Bosch Worcester Greenstar Combi 4000 Boiler 30kW - 82864 - from Toolstation
                                £1446.38
                                ex. VAT £1205.32
                                Each

                                Perfect for small to medium sized homes with one bathro ...Read more

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                                Baxi Baxi Baxi 800 Series Combi Boiler 30kW - 79417 - from Toolstation ( 6 )
                                Ideal Boilers Ideal Boilers Ideal Vogue Max Combi Boiler 32kW - 24356 - from Toolstation
                                £1469.98
                                ex. VAT £1224.98
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                                Based on the Vogue GEN2 range the Vogue Max Combi pairs ...Read more

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                                Vaillant Vaillant Vaillant ecoTEC Plus Combi Boiler 32kW - 94610 - from Toolstation
                                £1558.88
                                ex. VAT £1299.07
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                                A boiler with high performance, control and efficiency ...Read more

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                                Vaillant Vaillant Vaillant ecoFIT Pure Combi Boiler 25kW - 34270 - from Toolstation
                                £1205.68
                                ex. VAT £1004.73
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                                A compact, high performance combi boiler • Comes with ...Read more

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                                Vokera Vokera Vokera Vision Plus Combi Boiler 25kW - 32305 - from Toolstation ( 1 )
                                Viessmann Viessmann Viessmann Vitodens 100-W Combi Boiler 35kW - 55925 - from Toolstation ( 1 )
                                £1358.08
                                ex. VAT £1131.73
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                                Compact dimensions, low weight and quiet operation mean ...Read more

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                                Vokera Vokera Vokera Unica MAX Combi Boiler 40kW - 20331 - from Toolstation
                                Vaillant Vaillant Vaillant ecoTEC Plus Combi Boiler 38kW - 60172 - from Toolstation
                                £1747.58
                                ex. VAT £1456.32
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                                A boiler with high performance, control and efficiency ...Read more

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                                Vokera Vokera Vokera Unica MAX Combi Boiler 35kW - 97217 - from Toolstation
                                Ideal Boilers Ideal Boilers Ideal Vogue Max Combi Boiler 40kW - 10268 - from Toolstation ( 2 )
                                £1627.48
                                ex. VAT £1356.23
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                                Based on the Vogue GEN2 range the Vogue Max Combi pairs ...Read more

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                                Viessmann Viessmann Viessmann Vitodens 100-W Combi Boiler 26kW - 61855 - from Toolstation
                                £1290.18
                                ex. VAT £1075.15
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                                Compact dimensions, low weight and quiet operation mean ...Read more

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                                Ideal Boilers Ideal Boilers Ideal Logic Max Combi Boiler 24kW - 97148 - from Toolstation
                                £1128.78
                                ex. VAT £940.65
                                Each

                                Based on Logic+ range the Logic Max Combi combines the ...Read more

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                                Viessmann Viessmann Viessmann Vitodens 050-W BOKA Combi Boiler 30kW - 99361 - from Toolstation ( 1 )
                                £1029.18
                                ex. VAT £857.65
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                                Compact dimensions, low weight and quiet operation mean ...Read more

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                                Baxi Baxi Baxi 200 Series Combi Boiler 28kW - 86607 - from Toolstation ( 2 )
                                Ideal Boilers Ideal Boilers Ideal Logic+ Combi Boiler ErP C24 24kW - 85188 - from Toolstation
                                £1070.98
                                ex. VAT £892.48
                                Each

                                Highly efficient and reliable gas boiler combining low ...Read more

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                                Vokera Vokera Vokera Evolve Combi Boiler 42kW - 83621 - from Toolstation ( 3 )
                                Viessmann Viessmann Viessmann Vitodens 100-W Combi Boiler 30kW - 76144 - from Toolstation ( 1 )
                                £1305.08
                                ex. VAT £1087.57
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                                Compact dimensions, low weight and quiet operation mean ...Read more

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                                Baxi Baxi Baxi 200 Series Combi Boiler 24kW - 69453 - from Toolstation ( 5 )

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