<iframe src="https://www.googletagmanager.com/ns.html?id=GTM-MH5676" height="0" width="0" style="display:none;visibility:hidden"></iframe>System Boiler Installation - Cost, How They Work | Local Heroes

Need a System Boiler installed?

Choosing to install a new boiler in your home is a decision that takes different factors into account. Learning about each type of boiler certainly helps, so that’s why we’ve put together this system boiler guide. This way you can be confident that you are choosing the boiler that best suits your home. Alternatively, you can read our guides on Conventional Boilers and Combi Boilers.

How system boilers work

Like conventional, or regular, boilers, system boilers are ideal for homes with a traditional heating system, which includes a boiler, radiators and a hot water cylinder.

One of the main advantages is that system boilrs don't need a separate tank in the loft to feed the central heating system as they take water directly from the mains. This means they are a great option to save space in your property.

A system boiler is a newer version of the traditional heat-only system, the difference is that it incorporates some extra components inside the boiler, so there's no need of them being added externally, saving space and money.


  • System boilers are a good choice for larger households with multiple bathrooms because they provide hot water via a cylinder/storage tank rather than the mains for hot water. They are therefore capable of providing a steady, high pressure supply of hot water to any number of taps at the same time.
  • Unlike a standard boiler, a system boiler does not require a water tank in the loft. This suits homes without a loft or frees up the loft space for conversion.
  • There are some components that are already built inside a system boiler, so these are not required to be fitted external to the appliance, making installation and boiler replacement less expensive and less space consuming than with a standard boiler.
  • Their hot water storage tank can be connected to a solar heating system, which reduces both energy bills and carbon footprint.


  • You may have to wait for hot water with a system boiler. The amount of hot water available to your household will be dictated by the size of your hot water storage tank. If the hot water runs out, you'll have to wait while the boiler heats more.
  • System boilers take up more space than combi boilers (although less than standard boilers). They require storage space for both the boiler and the hot water cylinder, and so may not be the best choice if space is at a premium in your house.

Up to 10 year warranty

Whichever boiler you decide is right for your household, Local Heroes offers a 12 month guarantee on all boiler installations alongside your up to 10-year warranty from the manufacturer. That way you know that if your boiler does break down, our experts will be over at the earliest opportunity to get your home back in running order.

System boilers that we offer

Brands we work with

At Local Heroes, we are proud to work with industry leading boiler manufacturers

Boilers Advice and Help

Need to know a little bit more about boilers? Check out our articles below.