Clas System One 24kw

The Clas System ONE gas condensing boiler boasts our patented XtraTech™ stainless steel heat exchanger for more efficient heating and better reliability. Its 1:7 modulation ratio means it can adapt to provide the desired heating, while simultaneously keeping fuel bills low.

The lightweight Clas System ONE comes complete with an 8 year warranty and a range of high-end features including a large backlit display, an energy saving 'Auto' function and easy-to-use mechanical clock.

The Clas System ONE is easy to operate through its back-lit display and is compatible with Ariston controls for use with the Ariston Net app and comes with an 8 year warranty as standard.

•  Super energy efficient with 'A' class ErP rating.
• The ‘Auto’ function monitors the temperature of your heating system and adjusts your boiler's operation accordingly – reducing peaks in flow temperature and thereby optimising energy efficiency.
• Super silent operation.
• Easy access for any maintenance requirements.