There are millions of perfectly good boilers and heating systems installed and working, and most are likely to be good for 30 years or sometimes more.
Sometimes the only reason to replace the boiler is because a repair needs parts that are no longer available from the manufacturers.
However, below are more common reasons why you may wish to consider a boiler replacement BEFORE your old boiler has reached the end of its life.
Boiler efficiency and the environment
New efficient boilers around 90% SEDBUK band A ratings, will extract around 90% of the energy of the gas it burns for heat. A 30 year old boiler will be closer to 60%. Older boilers were designed when natural gas was cheap, plentiful and “greenhouse” gases were not an issue. Carbon dioxide is produced in larger quantities by older boilers because they are less fuel efficient and burn more gas for a given amount of useful heat. If you want to help save the planet and reduce your gas bill by around a third (£240,00 per year) then you will need to replace your old boiler 60% efficiency with new SEDBUK band A Boiler.
Persistent Boiler breakdowns become expensive
Plain unreliability, can become expensive. Many boiler models suffer with this problem and if your boiler breaks down every six months, with a different problem every time. Eventually, you will lose patience and money because as well as being cold with no hot water, it would be uneconomical to keep the boiler maintained rather than just purchasing and installing a new reliable boiler.
Costs of repair are more than a new boiler !
A repair costing £700.00 will get an old boiler working, but it probably will make economical sense to fit a new efficient boiler.
Faulty or Corroded Flue
All boilers need a flue to carry the potentially dangerous products of combustion safely to the outside. Flue components corrode with time and often cease to be available long before parts for the boiler itself. Also builders tend to conceal flues inside structures of properties and exposing a flue for repair or maintenance leaves a large bill for making good, boxing in, decoration etc. Sometimes better to fit a new boiler and flue instead.
Boiler noises (Kettling)
A loud noise like a kettle boiling coming from your boiler (Kettling) is usually caused by products of corrosion inside the central heating system like the pipework,radiators etc which accumulate inside the boilers heat exchanger.
Many elderly boilers that work perfectly well often make this irritating noise. Sometimes, this can be resolved if a power-flush is performed.
However, the results are not reliable and silence cannot be guaranteed. For peace it might be better to replace the boiler.
Unreplaceable parts but functioning boiler
You know your boiler is old and it will be almost impossible to find parts for repairs to any components that have become faulty so it makes sense to replace the boiler before the cold winter comes and you are without hot water and heat.
Sometimes the only reason to replace the boiler is because a repair needs parts that are no longer available from the manufacturers.
However, below are more common reasons why you may wish to consider a boiler replacement BEFORE your old boiler has reached the end of its life.
Boiler efficiency and the environment
New efficient boilers around 90% SEDBUK band A ratings, will extract around 90% of the energy of the gas it burns for heat. A 30 year old boiler will be closer to 60%. Older boilers were designed when natural gas was cheap, plentiful and “greenhouse” gases were not an issue. Carbon dioxide is produced in larger quantities by older boilers because they are less fuel efficient and burn more gas for a given amount of useful heat. If you want to help save the planet and reduce your gas bill by around a third (£240,00 per year) then you will need to replace your old boiler 60% efficiency with new SEDBUK band A Boiler.
Persistent Boiler breakdowns become expensive
Plain unreliability, can become expensive. Many boiler models suffer with this problem and if your boiler breaks down every six months, with a different problem every time. Eventually, you will lose patience and money because as well as being cold with no hot water, it would be uneconomical to keep the boiler maintained rather than just purchasing and installing a new reliable boiler.
Costs of repair are more than a new boiler !
A repair costing £700.00 will get an old boiler working, but it probably will make economical sense to fit a new efficient boiler.
Faulty or Corroded Flue
All boilers need a flue to carry the potentially dangerous products of combustion safely to the outside. Flue components corrode with time and often cease to be available long before parts for the boiler itself. Also builders tend to conceal flues inside structures of properties and exposing a flue for repair or maintenance leaves a large bill for making good, boxing in, decoration etc. Sometimes better to fit a new boiler and flue instead.
Boiler noises (Kettling)
A loud noise like a kettle boiling coming from your boiler (Kettling) is usually caused by products of corrosion inside the central heating system like the pipework,radiators etc which accumulate inside the boilers heat exchanger.
Many elderly boilers that work perfectly well often make this irritating noise. Sometimes, this can be resolved if a power-flush is performed.
However, the results are not reliable and silence cannot be guaranteed. For peace it might be better to replace the boiler.
Unreplaceable parts but functioning boiler
You know your boiler is old and it will be almost impossible to find parts for repairs to any components that have become faulty so it makes sense to replace the boiler before the cold winter comes and you are without hot water and heat.
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