System Boiler Installation Bristol & South West

Are you looking for a new system boiler for your home? At Gas Safe, we’ve been installing system boilers to homes and commercial properties across the South West for the past 15 years.

System boilers are a popular choice for homes with a number of occupants and a higher demand for hot water, proving to be an economical choice for larger properties.

We provide a full service for system boilers including installation, repair and annual servicing. To ensure peace of mind for customers, we are Worcester and Vaillant accredited installers and have a full team of Gas Safe registered engineers.

If you would like more information about having a new system boiler installed in your home, give one of the Gas Safe team a call today on 0117 964 0078 or fill out the callback request form below and one of our team will call you back.

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    What Is a System Boiler?

    A system boiler is a type of boiler that stores hot water in a storage tank or cylinder, unlike a combi boiler, which supplies the heating and hot water for a home from one unit.

    How Does a System Boiler Work?

    A system boiler works by burning gas which is used to create hot water, this water is then fed into a water cylinder which allows for quick access to hot water, the size of the cylinder determines how long it can be in use before the hot water is depleted.

    Unlike a heat only boiler, a system boiler takes water directly from the mains, meaning there is no need for an additional cold water cylinder in the loft.

    What Are the Benefits of a System Boiler?

    System boilers have a number of benefits, particularly for those with high hot water usage:

    • Allows you to use multiple hot water sources simultaneously.
    • No need for an additional cold water tank.
    • Provides hot water on demand provided the tank has not been emptied by previous usage.
    • Economical to run.
    • Easy to install.

    Other Types of Gas Boiler

    At Gas Safe, we have experience in installing, repairing and servicing all types of gas boiler:

    Combi Boiler

    Combi (combination) boilers are the most popular type of boiler, being a compact unit that provides both the heating and hot water on demand without the need for an external cylinder.


    • High efficiency unit
    • Compact size
    • Provides hot water on demand
    • Cheaper than a conventional boiler

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    Conventional Boiler

    Conventional boilers, sometimes referred to as heat only boilers are ideal in homes where a traditional heating system is already in place. Despite less being installed, they are still very reliable.


    • Can use multiple hot taps at once
    • A good option for low water pressure
    • System boilers are also a good option for older properties as minimal changes to existing pipework are required

    More Info

    System Boiler FAQS

    • What Type Of Property Is a System Boiler Suited To?

      Whilst a system boiler can be installed in most types of properties, they are most beneficial where hot water usage is high.
    • Who Is The Best System Boiler Manufacturer?

      There are several system boiler manufacturers with a wide range of products which can make choosing very difficult. At Gas Safe, we recommend the best boiler for your home and budget taking into account the quality and reliability we have experienced from the brand.
    • What Are The Disadvantages of System Boilers

      System boilers, like any kind of boiler, have their limitations. These include:

      • The required hot water tank takes up room, dependant on size, this can usually be a small cupboard.
      • Once the water that’s been heated has been used up, you will need to wait for more to heat before you can use it again.
      • Due to the additional components, a system boiler will generally cost more to install than a combi boiler. However, it is likely to be less than a heat only boiler.
    • How Much Does a System Boiler Cost?

      The cost of a system boiler including installation depends on a number of things including the make and model, location of installation and current boiler. To get an idea of how much a new boiler might cost you, use our instant boiler quote tool.
    • How Often Does a System Boiler Need Servicing?

      Like all types of boiler, it is recommended that you should have the unit serviced on an annual basis to keep efficiency high and reduce the risk of an unexpected breakdown.

    South West System Boiler Installers

    If you’re looking for a new boiler and think a system boiler is the best choice for your property, or you are looking for a repair or service for your unit, we can help.

    Call Gas Safe today on 0117 964 0078 or fill out the form below and we will get back to you.

    • Request a Callback