The ATAG i24S system boiler is middle of the range when it comes to energy output rating. It has an output of 23.2kW for central heating.
The ATAG i24S system boiler is powerful enough to heat a small to medium-sized home with up to 15 radiators and a single bathroom.
This boiler has an energy efficiency rating of 94%, meaning it can save you money on your energy bills.
If you have more than 15 radiators & multiple bathrooms, look at the ATAG i system boiler models (32kW & 40kW). On the flip side, if your house has less than 15 radiators (meaning it needs less hot water), the 15kW and 18kW system boilers will be your best bet.
Although this boiler unit has been designed to be compact and lightweight, system boilers need additional hot water storage cylinders installed alongside the boiler. The cylinder is often located in an airing cupboard or similar space in your home. That's why you'll find that system boilers are not ideal for homes with little space.
The ATAG i range is also available as a combi boiler for those with limited space in their homes.
