How do we know when we need to replace our boilers?
When is a boiler too old?
Keeping our homes warm is crucial. And with energy prices remaining high, it’s now more important than ever to think about the efficiency of your central heating boiler to ensure you’re not paying more than you have to on your energy bills.
If you heat your home with a boiler and radiators, it is likely that roughly two-thirds of your total home energy expenditure goes on the fuel used to run your central heating. The proportion of energy existing in the fuel that is used to run the boiler establishes the efficiency of the boiler. To put it another way, the higher your boiler’s efficiency, the less amount of fuel needed to create the same amount of heat in your home. Which means the less money wasted.
A step-change in boiler efficiency took place back in the 1980s, when ‘condensing’ boilers were first introduced to the market. A high efficiency condensing boiler is widely regarded as a good choice if you’re looking for an environmentally friendly and more efficient boiler, as they are able to make better use of the heat they generate from burning fuels. With a heat only boiler, some heat is wasted with hot gases released from the flue.
However, a condensing boiler captures some of the heat from these waste gases and uses it to heat water returning from your central heating system. As a result, it requires less heat from the burner and is consequently much more efficient.
As boilers age – particularly those that are not well maintained – they become less efficient. This combination of age and old technology means that an older boiler is likely to have significantly higher annual running costs, compared with a modern replacement – as much as £300 per year in a typical semi-detached home.
Not sure if your boiler needs replacing?
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