SEDBUK Energy Efficiency Rating Bands
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 our boiler 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 The scheme is temporary as it will be withdrawn when a European directive on boiler energy labelling is introduced.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 |
| A |
90% and above |
| B |
86% – 90% |
| C |
82% – 86% |
| D |
78% – 82% |
| E |
74% – 78% |
| F |
70% – 74% |
| G |
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 |
Learn more about the current government Boiler Scrappage Scheme, get over £800 savings on a new boiler installation.
