More energy is used to heat the water in your home than any other electrical appliance, so it’s worth investing in your system to get it up to scratch.
You can get an annual boiler check which could save you having to replace the whole thing at a later date by spotting faults early.
The older your boiler is the less efficient it is likely to be, so if your model is 15 years or older you should consider changing it. The initial outlay is not cheap at more than £1,000 but by replacing your old G-rated boiler with a new A-rated condensing model you can save up to £235 a year, says the Energy Saving Trust.
If your current boiler is working well keep it that way. Fitting a jacket to your hot water tank can cut wastage and save about £35 a year, while protecting your hot water pipes with insulating material can also save you £10 annually.