Conventional Boiler Installation Bristol & South West

Conventional boilers, also known as heat only boilers, regular boilers or traditional boilers are best suited to homes where a traditional heating and hot water system is already in place.

At Gas Safe, we’ve been working with conventional boilers at properties across the South West over the past 15 years, providing a complete service including installation, repair and annual servicing.

As Worcester and Vaillant accredited installers, we can offer exclusive deals and extended warranties on conventional boilers, we are also Gas Safe registered for peace of mind.

If you’re experiencing a problem with your existing heat only boiler, give one of the Gas Safe team a call now on Bristol: 0117 964 0078 or fill out the form below and one of our team will call you back.

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    What Is a Conventional Boiler?

    A conventional boiler is the oldest type of boiler that most plumbing and heating engineers continue to work on.

    Unlike a combi or system boiler, a heat only boiler requires an additional cold water storage tank in the loft which feeds the hot water cylinder. They are suitable for properties where hot water demand is high.

    How Does a Conventional Boiler Work?

    Conventional boilers rely on a number of components to run including the boiler itself, a vented hot water cylinder, a cold water storage tank and an additional hot water tank.

    The boiler works by heating water using a heat exchanger which is fed through from the cold water storage tank, this is then transported to the hot water cylinder for use, offering hot water on demand to multiple sources.

    There is also an additional hot water tank in the loft which is used to regulate the water in the system and store and excess hot water.

    What Are the Benefits of a Conventional Boiler?

    Despite being a traditional method of heating, conventional boilers still offer a number of benefits to homeowners including:

    • Allows you to use hot water from multiple sources.
    • Ideal replacement in homes that rely on an older heating system.
    • Suitable for homes with more than one bathroom.
    • Compatible with solar hot water systems.

    Other Types of Gas Boiler

    At Gas Safe, we are experienced in the installation, repair and ongoing servicing of 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

    More Info

    System Boilers

    System boilers produce hot water for your water cylinder and heat your central heating and are good for large homes where there are a number of occupants and a higher demand for hot water.


    • Easy to install
    • Doesn’t need a cold water tank
    • Can use multiple taps at once
    • Ideal for properties with high water demand

    More Info

    Conventional Boiler FAQS

    • What Types Of Property Is a Conventional Boiler Suited For?

      We would only usually recommend a conventional boiler if your home already relies on a traditional heating system, otherwise, alterations to pipework and radiators may be required to accommodate a system or combi boiler.
    • What Brand of Boiler Is Best?

      There are many established manufacturers of conventional boilers, so it can be overwhelming when looking online. At Gas safe, we only ever recommend the brand that’s right for you based on your budget and our experience.
    • What Are The Disadvantages Of Conventional Boilers?

      Like any type of boiler, conventional boilers have their limitations including:

      • With two water storage tanks required, conventional boilers take up a lot more room in comparison to a combi or system boiler.
      • As a heat only boiler is reliant on a number of other components (pumps, hot water tanks and cylinders) – the scope for breakdowns is higher.
    • How Much Does a Conventional Boiler Installation Cost?

      The cost of installation conventional boiler is dependent on your current heating system and what model you will require. To get an idea of how much a new boiler might cost you, use our instant boiler quote tool.

    South West Conventional Boiler Specialists

    If you need a new boiler installed at your home, Gas Safe can help. Call one of our team today on 0117 964 0078 or fill out the form below and we will get back to you.

    • Request a Callback