Ariston Clas One 18kW System Boiler

With an efficiency rating of 90% and an ErP A-rating for central heating and hot water, this system boiler could potentially help to reduce both your carbon footprint and your energy bills, depending on the efficiency of your current heating system.

As mentioned, the Clas One system boiler range has output models of 18kW, 24kW, and 30kW, therefore, if your home has higher demand for central heating and hot water, there are other options available. The Clas One range is also available as a combi boiler for those with limited space in their home.

On the topic of having limited space in your home, although system boilers are great for those that have a demand for instant hot water, they do take up more room in your home. This is because they are installed with a hot water cylinder, which is typically located in an airing cupboard. However, this cylinder allows you to store hot water until you need it, perfect for those who need hot water ‘on tap’ (excuse the pun).