Old Boiler vs New Boiler

Most homes still use home heating oil – but many boilers have been installed for years if not decades.

So, is it worth upgrading your existing oil boiler? Use the Power to Switch calculator to find out.

Should I replace my old oil boiler?

Making sure your boiler is efficient and well serviced is really important. The cost of running your boiler makes up about 55% of your overall energy bill. Many homes have older boilers which can sometimes be only 60%-65% efficient which means for every €100 spent on oil €35 – €40 is wasted.

What You need to think about….

If your boiler is over ten or fifteen years old it may be worth replacing with a modern condensing boiler. These boilers can have efficiencies of around 95% while older boilers are typically 60–70% efficient. When you get your boiler serviced your energy technician should be able to let you know how efficient your boiler is.
If you have had your boiler serviced regularly and it is a relatively efficient model, you may not need to replace it. A well maintained boiler will be more efficient and reliable than one that hasn’t been looked after.
If you are finding that your boiler is becoming increasingly unreliable it may be time to replace it with a new model. The cost of ongoing repairs or parts will soon add up. However, if you haven’t serviced it, this would be the first thing to try.
There are a range of grants and support available to help with the cost replacing old, inefficient boilers. To find out more visit our Energy Grants page.
It may be that your boiler is fine but with an upgrade to the controls, you can make your central heating more efficient. This will be cheaper than replacing the boiler and give you a more controllable system. A full set of controls should ideally include a boiler thermostat, a timer or programmer, a room thermostat and thermostatic radiator valves (TRVs).

Who should do the work?

For gas boilers the installer must be by law be accredited by The Register of Gas Installers of Ireland (R.G.I.I).

For oil boilers we recommend that you only use an OFTEC registered installer. OFTEC keeps a register of all suitably qualified, reputable oil engineers. Selecting an OFTEC registered technician provides peace of mind that you are choosing a skilled and qualified technician.

To find out more about installers on the Gas Safe Register and help with finding an OFTEC registered technician here.

Finding an OFTEC or Registered Gas Installer in your local area is easy with ‘Power to Switch’. [Coming Soon]

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