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Save up to £800 on your gas energy bills

If you need to replace your boiler, it’s good to know that choosing from the A rated Glow-worm Energy exclusive range could reduce your heating bills by up to £800 a year.

Here’s how we calculated this possible saving:

• The average UK household spends £646 per year on their gas bills based on 15,000 kWh consumption.[1]

• The average semi-detached house in the UK saves £540 and the average detached house saves more than £800 on their heating bills when they replace a ErP G rated boiler with an A rated one.[2]

• Switching to a new Glow-worm Energy boiler operating at a maximum of 94% efficiency could reduce your energy use by 30%.[3]

[1]Table 235 (48 kB) This can also be downloaded from:



These are estimated figures based on installing a new A-rated condensing boiler with a programmer, room thermostat and thermostatic radiator controls (TRVs) in a gas heated home from an older boiler with a programmer and room thermostat. Savings will vary depending on the size and thermal performance of your home.

Figures are based on fuel prices as of October 2022.

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