CLAS ONE R 15

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

The Clas 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.
• With Ariston NET you have comfort at your fingertips. Manage your boiler remotely, find reports on your consumption and receive technical support online, all together in a free app for your smartphone. (Ariston controls required)