The reliable ATAG i15S system boiler has an efficiency rating of 93% and an ErP A-rating for central heating, which means it'll reduce your energy bills.
The boiler's 15kW output makes it ideal for smaller homes with up to 10 radiators and a single bathroom.
If your home has more than 10 radiators & multiple bathrooms, we'd advise looking at the ATAG i system range; 18kW, 24kW, 32kW, and 40kW.
Although the boiler unit is compact and lightweight, you'll need to remember that system boilers also need an additional hot water storage cylinder installed alongside the boiler. These are often located in an airing cupboard or similar space in your home, and that's why 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.
