The ariston clas system one 30000w system boiler with standard flue delivers advanced condensing technology through ariston's patented xtratech stainless steel heat exchanger, engineered for enhanced heating efficiency and superior reliability. The 1:7 modulation ratio enables precise heating output adjustment, matching system demand while minimising fuel consumption. The integrated 'auto' function continuously monitors heating system temperatures, adjusting boiler operation to reduce flow temperature peaks and optimise energy performance. The backlit display provides intuitive operation, while compatibility with ariston controls enables remote management via the ariston net app. Finished in white, the boiler features easy-access design for simplified maintenance, high-efficiency pump technology, and whisper-quiet operation. Features & benefits: patented xtratech stainless steel heat exchanger for enhanced efficiency and long-term reliability. 1:7 Modulation ratio adapts heating output to demand, reducing fuel consumption. 'Auto' function monitors and adjusts operation to optimise energy efficiency. A-class erp energy rating for superior energy performance. Backlit display with intuitive controls and ariston net app compatibility. High-efficiency pump with super-silent operation for unobtrusive performance. Easy-access design simplifies maintenance and servicing requirements. 8-Year warranty as standard for long-term peace of mind. Output: 30000w 30kw . Colour: white.