The cost of heating your home, particularly during the colder winter months, makes up about 60% of energy bills. You can keep heating costs down and still keep your home cosy by making smart heating choices. Installing an energy efficient boiler can save you hundreds of pounds a year.
The age and type of boiler you have affects how efficient it is. A modern condensing boiler is the most efficient boiler on the market. If everyone in the UK with gas or oil central heating installed a high-efficiency condensing boiler with full sets of heating controls, we would save enough energy to heat nearly 1.9 million homes for a whole year and save around 6.7 million tonnes of CO2, according to the Energy Saving Trust. The efficiency of a boiler is normally expressed as a percentage. Since October 2010 only boilers that are 88% or more efficient can be installed in homes, and most of the boilers you can buy now are between 88% and 91% efficient. More recently boiler efficiency is stated as a rating on a boilers ErP energy label from A-G. Nearly all modern gas condensing boilers get an A energy rating. It’s worth noting that you wouldn’t expect to see a difference in your gas bills if you choose a boiler that was 91% efficient over an 88% efficient boiler, or between one A rated boiler and another. The biggest saving comes from making a leap from an old inefficient boiler to a new one.
Will an efficient new boiler save you money? If you replace an old G-rated boiler with a modern A-rated boiler with a full set of heating controls, the Energy Saving Trust estimates you’ll save around £340 a year on your gas bill.