Rust, unfortunately, is a common problem for bathroom radiators because the bathroom is an environment where this type of corrosion thrives!
The combination of metal and oxygen with water or air moisture causes a chemical reaction which forms rust.
So, combine a steamy bathroom with a hot metal radiator and damp towels and you’ve got all the ingredients for a rusty radiator or towel rail.
The good news is, external bathroom radiator rust can be easily removed with some white vinegar and a cloth. Regular cleaning with your usual bathroom products can also help prevent rust forming on your radiators by removing the moisture and bacteria.
The build up of sludge in your heating system can also cause the bathroom radiator to rust from the inside and create little holes which could turn into leaks.
If that is the case, your system may require a power flush.
For more information on how to combat radiator corrosion and rust, head to our guide, How To Combat Radiator Corrosion.