This boiler model, the Clas HE System Evo 30kW is the most powerful in its range. With an output of 30kW for central heating, this system boiler can comfortably heat a home with up to 20 radiators and 1-2 bathrooms. Many smaller homes will not have this demand for central heating and hot water, in this case, the HE Evo 18kW or 24kW may be more suitable for your home.
System boilers are ideal if your home requires instant hot water in multiple bathrooms at once. This is thanks to the additional hot water cylinder that is installed in an airing cupboard or similar sized space, that stores water ready for when you need it.
It is important to take note of this when purchasing a new or replacement system boiler, as you will need the extra room in your home. If space is limited in your property, then a combi boiler will be a better option.
The Ariston Clas HE System Evo 30kW has an efficiency rating of 90% and an ErP A-rating for heat, which means that this boiler could help lower your energy bills, depending on the efficiency of your current heating system.
