For those with an old, inefficient boiler, the benefits of installing a modern A-rated energy efficient boiler are significant.
If you have an old gas boiler with a G efficiency rating, then upgrading to a modern condensing boiler with an A rating could save you upwards of £350 per year on your heating bill.
By way of a case study, consider this situation:
You have an old, free standing G-rated gas boiler with a 55% efficiency rating. It has no separate room controls and must heat an entire detached house. The estimated cost of running this boiler for one year is around £1,705.
Replacing this inefficient boiler with a new, A-rated boiler rated at 90% efficiency could heat the same home for a year for just £1,053.
That’s an annual saving of £652, roughly £54 per month!
With integrated heating controls and smart home technology, the effective efficiency of these boilers can be increased further, saving you even more money.
However, the reduction in your heating bills will be much lower when replacing a moderately efficient boiler to a highly efficient boiler. In these cases, the best way to save on energy costs is to integrate smart controls.
Being aware of what the efficiency labels on your boiler mean is crucial in helping you to decide if getting a new boiler would work for you. So, let’s look at the different rating systems for boiler efficiency that you might encounter.