Hello Elizabeh,If you boiler is that new (and this is crucial), you do not need to go through the process of flushing out radiators; the inhibitors are introduced to the boiler when it is serviced.British Gas has a brilliant Homeserve service. We subscribe to them and the boiler is serviced every year "free of charge" (if you deduct the monthly payment for Homeserve). They are incredibly good and if you have problems with your boiler, they come to check too.But, if you are not too sure, just bleed a radiator and, if the water comes out clear, you do not need inhibitors. Unless, of course, all your radiators are very much older! Still, do the bleeding and you will know.
Ivonne Holliday ● 2068d