System boilers require a cylinder for storing hot water, however the major heating and hot water system components are built into the boiler itself, making it quicker and easier to install. In addition, there is no need for a tank in the loft, so it can be an option in a home with little or no loft space or where the space is earmarked for a conversion.

These boilers are also compatible with solar water heating systems, which deliver environmental benefits as well as lower energy bills.

• Ideal for homes with more than one bathroom
• Constant supply of hot water to any number of taps at the same time
• No need for a loft tank, freeing up space and eliminating worries about leaks or frost damage
• Economical to run
• Built-in components makes installation quicker and neater