System Boilers

Shop high-performance system boilers at Toolstation, with products available from trusted brands like Ideal Boilers, Viessmann, Vaillant and Vokera. We stock system boilers in various sizes, configurations and kilowatt ratings to suit any home or workplace.

What Are the Benefits of a System Boiler?

System boilers are ideal for larger homes with higher demand for hot water. Unlike regular boilers and combi boilers that heat hot water as required, a system boiler benefits from a constant supply of hot water stored in a cylinder. However, the hot water supply runs out faster when multiple radiators, taps or showers are used, and it can take 30-40 minutes for a system boiler to heat more water. Overall, system boilers are reliable, efficient, and compatible with most central heating systems. Shop our full range of system boilers here, or check out our Boiler Buying Guide for more advice on how to find the right one for you.