Ariston SEDBUK Boiler Efficiency
SEDBUK Energy Efficiency Bands
Ariston High Efficiency boilers are SEDBUK rated A but what exactly does this mean? Our guide should help explain the SEDBUK rating system and how it relates to your Ariston boiler.
As a simple guide to efficiency, a scheme has been created with SEDBUK efficiency bands assigned to boilers on an “A” to “G” scale. The band is shown in the database and may be used on product literature and labels, though there is no requirement for manufacturers to do so. The scheme is temporary as it will be withdrawn when a European directive on boiler energy labelling is introduced.
| Band | SEDBUK range |
| 90% and above | |
| 86% – 90% | |
| 82% – 86% | |
| 78% – 82% | |
| 74% – 78% | |
| 70% – 74% | |
| below 70% |
Comparative Energy Efficiency Fuel Costs
The table below shows the fuel costs you could expect to incur depending on your property size and the fuel efficiency of your boiler.
| Typical Annual Fuel Costs | ||||||
| Seasonal efficiency | Flat | Bungalow | Terraced | Semi-detached | Detached | |
| Old boiler (heavy weight) | 55% | £267 | £341 | £354 | £397 | £550 |
| Old boiler (light weight) | 65% | £231 | £293 | £304 | £340 | £470 |
| New boiler (non-condensing) | 78% | £197 | £249 | £258 | £289 | £396 |
| New boiler (condensing) | 88% | £178 | £224 | £232 | £259 | £355 |
