System boilers, also known as sealed system boilers, are the perfect solution for larger family homes where you might have many people using multiple sources of hot water at the same time. System boilers store a large reservoir of hot water, at temperature, in a hot water cylinder so you have a constant supply of hot water around the clock.
With a system boiler everything you need for your heating and hot water systems is built into this compact yet powerful and highly efficient package. In addition to this, most of our boilers are Quiet Mark accredited meaning that those peaceful nights will never be interrupted by the sound of a Vaillant boiler.
