Boiler Replacement - When & Why?
Replacing a Gas Boiler is not a cheap project to undertake, however when your existing boiler has been condemned or is "broken beyond economical repair" you may be left with little choice.

Even if your existing boiler is still working it may be worth considering if replacing your boiler could actually save you money. In this article we have tried to address when it might be time to think about installing a new boiler.
So, why (or when) should you change your boiler?

  1. If a new boiler could save you money on your fuel / heating bills

    The Energy Saving Trust suggests that, for boilers over a certain age, savings of over £300 per year are achievable. Therefore over, say, ten years a new boiler could save you £3,000 or more; enough to pay for your new boiler and for a week (or more) in the sun. Please note that the cost to supply and fit a new boiler can vary widely from situation to situation.

    Different sources of information will tell you that if your boiler is 10 years old it should be replaced, others will tell you 20 years old. In the end it all comes down to how efficient your current boiler is. 

    Efficiency is, in layman’s terms, an indication of how much fuel (Gas) your boiler turns into heat compared with how much is wasted through flue vent emissions or other inefficiencies. A modern, efficient boiler will turn 90%, or more, of the fuel it burns into used heat whereas an old, inefficient boiler could be wasting as much as 30% of the fuel. 

    While it’s likely that an older boiler will be less efficient the best way to tell is the energy efficiency rating. All boilers are rated from A (being the most efficient) to G (Least efficient). With a rating of D to G its worth looking into the benefits of a new boiler.

  2. If your boiler starts to require regular repairs.

    The need for regular repairs to your boiler would suggest that parts are beginning to wear out. When this happens not only will you have regular expenditure to repair the boiler your boiler will also start to run less efficiently and so cost more in fuel. 

    There does come a point in the life of every mechanical device when it is best to replace it than to continually repair it. Otherwise it can become a case of “throwing good money after bad” as the saying goes. 

    Of course the better you maintain your boiler (Ensuring regular servicing) the longer it will run efficiently. It’s much the same as a car in this respect.
In the above two points we have dealt mostly with the cost implications of inefficient boilers. There is also the environmental impact of inefficient boilers.
According to the Energy Saving Trust changing from a G rated boiler to an A rated boiler could save 1,220 kg of carbon dioxide from being produced each year.
So, not only will a new boiler keep you warm for less it could also give you that warm feeling of knowing you are helping reduce carbon emissions.
More Information?
This is the first of three articles on this website designed to provide information on the subject of replacing a boiler.
The articles are broken into three topics
To discuss a boiler replacement with a thoroughly vetted, fully qualified Gas Safe Engineer call HomeForce on 0131 315 0000, complete our Request-A-Visit form or email us on