Ariston Clas One 30kW Combi Boiler – Natural Gas

The Ariston Clas One 30kW Combi Boiler is a high-performance, energy-efficient solution designed to deliver reliable heating and hot water for modern homes. Featuring Ariston’s patented XtraTech stainless steel heat exchanger, this boiler offers enhanced durability, improved efficiency, and long-term reliability.

With a 1:7 modulation ratio, the Clas One intelligently adjusts output to match demand, helping to reduce energy consumption and lower running costs. Its high domestic hot water flow rate ensures consistent performance, while smart compatibility with the Ariston Net app allows remote control and system optimisation.

A large backlit display makes operation simple, and the included LPG conversion kit provides added installation flexibility.

Why Customers Should Buy This Product

• 30kW output ideal for medium to larger homes
• XtraTech stainless steel heat exchanger for durability and efficiency
• 1:7 modulation ratio reduces energy usage and running costs
• High hot water flow rate (12.5 l/min) for strong performance
• Smart control compatibility with Ariston Net app
• Auto and Comfort functions for enhanced usability
• Large backlit display for easy operation
• Includes LPG conversion kit for installation flexibility
• High efficiency pump for improved performance
• 8-year manufacturer’s warranty for peace of mind
• Reliable quality from Ariston

Key Specifications

• Brand: Ariston
• Range: Clas One
• Model: 30 Combi
• Product Type: Combi Boiler
• Fuel Type: Natural Gas
• Mount Type: Wall Mounted

Performance:

• Heat Output: 30 kW
• CH Output (Max): 28 kW
• DHW Output: 30 kW
• DHW Flow Rate (35°C rise): 12.5 l/min
• Modulation Ratio: 1:7

Efficiency & Ratings:

• ERP Rating: A
• NOx Class: 5

Dimensions:

• Height: 745 mm
• Width: 400 mm
• Depth: 385 mm

Flue Options:

• Max Vertical (100mm / 125mm): 20 m
• Max Horizontal (100mm / 125mm): 7 m

Design & Features:

• XtraTech stainless steel heat exchanger
• Auto function technology
• Comfort function
• High efficiency pump
• Large backlit display
• Ariston Net smart compatibility

Additional Information:

• LPG conversion kit included
• Lightweight design (from 29 kg)

Noise Level:

• 51 dBA

Warranty:

• 8 Years Manufacturer’s Guarantee

What’s in the Box

• 1 x Combi Boiler
• LPG Conversion Kit

Important Information

• Flue and controls sold separately
• Must be installed by a Gas Safe registered engineer
• Suitable for sealed systems (no separate hot water cylinder required)