Want to make your home warmer while keeping energy costs down? Your boiler plays a big role in your household’s efficiency. In this guide, we’ll share simple tips to help you get the most out of your heating system – so you can save energy, lower your bills, and stay comfortable all year round.
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Energy Efficiency Tips
- Turn off heating when not needed.
- Improve insulation to retain heat.
- Seal gaps around doors and windows.
We recommend keeping it at 21°C for efficiency.
Replacing an old G-rated boiler with an A-rated one can save around £310 per year (Energy Saving Trust, April 2024).
* This estimated figure is from the Energy Saving Trust website and is based on fuel prices as of April 2024. The figure is based on replacing an old G-Rated boiler and installing a new A-rated condensing boiler with thermostatic radiator controls (TRVs), as well as a new programmer and room thermostat. This applies to gas heated semi-detached homes in England, Scotland and Wales, but savings will vary depending on the size and thermal performance of your home.
A boiler’s efficiency determines how much energy is converted into usable heat. Higher efficiency means lower energy waste and cost savings.
Boilers have one of two ratings:
- ErP rating (post-2015): A-G scale, with A+++ being the most efficient.
- SEDBUK rating (pre-2015): Percentage-based efficiency scale.
A-rated boilers (90% efficiency or higher) provide the best value.