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i have a stelrad ideal classic light weight cast iron boiler RS40 wall mounted balanced flue. it has been making a noise that sounds like a kettle whistling when the boiler lights up and i have been told that i need a powerflush to get rid of all the limescale and have been quoted £300-350...

hi tomy, The boiler is a stelrad ideal classic light weight cast iron boiler RS40 wall mounted balanced flue. does this help?? this is all i could find out :?

paul, hi yes it does sound like a small plane taking off! but the plumber has already tried putting stuff (technical i know) in to get rid of the lime scale but this was three weeks ago! and the plane is still flying! does he need to do it again??

well hello tomy, thanks for your reply... at work at the mo but i will get the info you need asap

Be nice.... I have an 'ideal' wall mounted gas boiler that is about 10 years old. recently and suddenly when the water comes on and the boiler fires up in the morning, after about 5 minutes the boiler starts to make a 'whistling' noise, but then stops after about 15 minutes but sometimes you...