To figure out how efficient a boiler is, you have to figure out how much of the fuel used to run it is turned into energy that can be used to heat your radiators and hot water. The boilers that waste the most energy get the lowest rating, while the ones that use the least amount of energy get an A rating.
With this rating system, you can choose a new boiler knowing that it will waste as little energy as possible. When you put in an A-rated boiler, you get two main benefits. First of all, your energy bills go down when less fuel is wasted. During the winter, heating costs make up about 60% of the average home’s gas bill. This means that putting in an A-rated boiler is a good way to save a lot of money. Second, these boilers are better for the environment because you use less fuel to heat your home and make hot water.
