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  • The right Combi Boilers size for you.

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    • The right Combi Boilers size for you.

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  • The right Combi Boilers size for you.

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    • Blog
    • The right Combi Boilers size for you.

    Updated: August 17, 2022

    When we talk about boiler size, we do not mean its dimensions, but rather its power output.

    The unit of measurement, used for Combi Boilers, is the kilowatt (kW). To clarify, the bigger the kilowatts, the greater the capacity of the boiler to match your demands for hot water and central heating.

    We advise that you get a small (low power) combi boiler if you have a small home with only one bathroom.

    On the other hand, you will need a much bigger boiler if you live in larger property with more than one bathroom.

    Here’s what you need to know about Minimum kW Size:

    NO. OF BEDRROMS1 bath & shower2 baths & showers 
    2-beedrom house26 kW29 kWGet Quotes
    3-bedroom house29 KW35 kWGet Quotes
    4-bedroom house29 KW35 KWGet Quotes
    5-bedrrom house35 KW35 KWGet Quotes