The electric heating element on my 2 year old bathroom radiator has failed. Am trying to avoid using a plumber and have bought a replacement - am amazed to find that the fitting instructions specify filling it with a mix of 75% water & 25% anti-freeze mix whereas I expected some sort of special oil to be specified.
Does anyone have any experience of undertaking this job?
Since the electric element can be used as well as hot water that seems to make sense but normal electric radiators use transformer oil with is a vegetable oil and I have used cooking oil in the past where it has leaked out. I wonder what is done to allow expansion?
Not sure of the mix but i know you are meant to leave a bit out for expansion. Don't know about the anti-freeze but surely an anti corrosion inhibitor would need to be mixed with de-ionised water so you won't get limescale build up and corrosion.
this type of water-filled electric radiator is quite common now, you fill the rad to 90% capacity in most cases (manufacturers instructions should specify) to give 10% for expansion. a corrosion inhibitor should definitely be used.
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