Book a Boiler Service Today and Keep the Repair Engineer Away

February 17, 2011 | Boilers/Agas/Rayburns

With spring on its way, it is a good time to have your oil boiler serviced. Many people think that it doesn’t make much difference but OFTEC, (Oil-Fired TECHnical association) has collected data that demonstrates the importance of having your oil fired boiler serviced regularly. It can save you money in the long run.

An efficient boiler burns less oil to produce the same amount of heat and it will also make it less likely that you will have to spend money at short notice to fix your boiler. OFTEC recommend that boilers are serviced on a yearly basis or as recommended by the manufacturer.


What Happens During a Service?

During a typical service the engineer will take a look at the boiler and make sure that it is working correctly and that it is burning oil efficiently. Common issues with an inefficient boiler include:

  • Excessive build up of soot – a build up of soot of 3mm can decrease the efficiency of the boiler by 8%.
  • Worn oil nozzles – the nozzles are under high pressure and atomise the oil into a vapour so it can be burned. These can be caked with soot and will eventually wear out.
  • Glazed photocells – a photocell is a safety feature oil fire boilers. It monitors the flame to make sure that it is still alight. It can become glazed with residue or soot and should be cleaned.
  • Ignition electrodes that are caked in soot or worn out.

Oil pipes and the oil tank should also be checked for leaks and the build up of condensation that can occur if the level is low. Oil in the water can also reduce the efficiency of your boiler.

To get your boiler serviced at a competitive price, visit our Boiler Servicing page and relax in the knowledge that your boiler will be serviced by a competent OFTEC registered engineer.


Carbon Monoxide

Another, more important, reason to have your boiler serviced regularly is the production of carbon monoxide. A boiler that hasn’t been serviced in a long time is far more likely to have the flu blocked which can cause carbon monoxide to leak back into the room. It can have deadly consequences. A carbon monoxide alarm is advisable and can alert you to its presence.

In low concentrations of CO in the air can cause symptoms including:

  • tiredness
  • headaches
  • vomiting
  • dizziness
  • nausea

If you experience any of these when your boiler is running switch the boiler off and contact an OFTEC engineer to take a look. Boilerjuice offer boiler and Aga servicing by OFTEC registered engineers, visit the oil boiler servicing page for more information and pricing in your postcode region or visit



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  1. I had a guy service my boiler under a home heating scheme. Until the service, the boiler had been working perfectly. He left the boiler not working and then said he could come back another day to fix it, and that it would cost £35 per hour. Surely they should leave the boiler in a working condition after a service???

    • Dear Sir/Madam,

      Was the engineer that you used an OFTEC certified? Our network of engineers are all OFTEC trained and certified to ensure that a number of tasks are performed when having a boiler serviced. I have checked our system and it would appear that you did not book your boiler service at, so there is very little we can do to help on this occasion, except offer some advice and guidance.

      Occasionally when a service is performed an engineer may find additional problems which could incur an additional costs – outside of the cost for a standard service. In a similar way to when you take your car for an MOT you may find out you need new tyres or that your brake pads are in need of replacement. Obviously your oil boiler wouldnt ‘fail’ a service, however it is an OFTEC engineers responsibility to advise you that you may need aditional work to ensure that you boiler will continue to run efficiently and reliably, they should also provide you with a OFTEC CD/11 . (It is of course your choice if you have the extra work done).

      Kind regards


  2. I am looking for cheap and right boiler for my home. i have gone through many brands but did not satisfied. Can any one suggest me where to find right one.

  3. Thanks for your blog. I am planning an cheap boiler for my farm house. My old boiler is in very bad condition.

  4. I would always recommend a grant oil boiler.

  5. What happens during a boiler service?

    During your boiler service, I will carry out various tests to ensure that your boiler is working safely and properly.

    During your boiler service I will carry out a 19 Point Service Check:
    Leak Checks – Check for gas leaks.
    Visual Checks – Look for obvious faults & leaks.
    Burner – Checked and where required cleaned.
    Flame – Ignition components and flames are checked and adjusted.
    Flue Check – To ensure all the dangerous fumes are safely flued out.
    Flue Gas Analyser – Computer check to ensure combustion is safe.
    Safety Checks – Ensure all your boiler safety components are working.
    Pressure Check – Central heating pressure is checked and adjusted.
    Condensate Trap – Trap is cleaned and checked.
    Gas Rate – Where possible check boiler gas consumption.
    Fan – Carry out Fan Pressure Test / Condition.
    Magnetic Filter – Where installed the filter is cleaned.
    Pressures – Checked to ensure they are correct.
    Seals – Checked for leaks and bonding.
    Controls – All controls checked and if needed adjusted.
    Radiators – Checked, and bleed if needed.
    Electrical – Ensure electrical connections are correct/safe.
    Clean – General internal boiler clean.
    Expansion Vessel – Check pressure

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