The technology used by the manufacturers of new gas boilers has improved year upon year. The outcome of this is that new boilers are able to offer significantly improved performance levels. Modern boilers are far more efficient for several reasons. The main improvement is that they are all condensing boilers. A well-maintained boiler will burn its fuel efficiently, but it will inevitably drop some heat in the hot gases that escape up the flue. Condensing boilers have superior heat exchangers, so they recover more heat, sending cooler gases up the flue and is therefore more efficient. Occasionally the flue gases get so cool that the water vapour in the gas condenses out (hence the name), and even more energy is recovered from the condensing vapour.
Almost all new gas boilers manufactured today are condensing boilers. This method that is able to utilise a lot more of the heat energy that a boiler produces compared to older non-condensing alternatives. Condensing boilers are therefore deemed to be a lot more efficient than older gas boilers.
Upgrading to a new A-rated boiler can have significant benefits. Not only are they going to be more reliable and a easier to locate spare parts in the rare event that anything goes wrong, but fitting an A-rated boiler in your home will also save you a plenty of money in the longer term!
The UK Energy Saving Trust predict that you can save up to £490 per year from your heating bill by moving from an old non-efficient gas boiler to an A-rated model. Considering this amount of saving it is easy to understand how over a period of time making the switch to a new energy efficient boiler can end up more than paying for itself.
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