Ariston Clas System ONE prices
The Ariston Clas System ONE costs from £800 to £1,000 for the boiler supply and with full installation from £2,300 to £3,500. The total installation cost depends on the sie of boiler required, the type of boiler being removed and the overall job complexity.
- The most powerful boiler (30kW, suitable for a large house) is £200 more than the least powerful version (18kW perfect for a small house or flat).
See our full guide on Ariston boiler prices for all details on the boiler types and ranges they produce
Prices per model
| Clas System ONE | Fuel | Output | Average Boiler Only Price | Average Price with installation | Quote |
|---|---|---|---|---|---|
| System | Gas | 18kW | £800 | £2,300 | Free Quote |
| System | Gas | 24kW | £900 | £2,400 | Free Quote |
| System | Gas | 30kW | £1,000 | £2,500 | Free Quote |
Ariston Clas System ONE boiler range
The Clas System ONE was lauched in early 2017and is one of Ariston's mid-range boilers, priced above the value ranges and below the premium. The boiler range is perfect for small, medium and large homes.
- Available as an 18kW, 24kW and 30kW System boilers
- Utilises the trademarked XtraTech™ stainless steel heat exchanger for greater efficiency.
- 1:7 modulation ratio and an Auto mode which combined reduce energy use and therefore lower gas bills.
- Runs at a quiet 49dB so as not to distrub everyday life.
- Includes an 8 year guarantee as standard.
Key features
- Fuel: Gas
- Boiler type & output (kW):
- System 18kW, 24kW, 30kW
- Dimensions (mm): 745 h x 400 w x 315 d
- Solar Compatible: No
- ErP Efficiency rating: A (90% efficiency in central heating)
- Quiet mark accreditation: 49dB
- Guarantee: 8 years
- Weight: 28.5kg, 32kg (30kW)
- Easy to use: simple controls and clear display
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