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Radiators work by passing their heat to the surrounding air. But they don't just radiate heat in fact most of the heat passed off a radiator is in the form of convection. Some radiators come with fins at the back, these are there to create a bigger surface area.

Two common faults:


  • If the radiator is cool at the top whilst still hot at the bottom it will need to be bled.


  • And if it is the other way round where its the top thats hot and the bottom thats cool then the radiator contains sludge.

Related Topics


Bleed Radiators


Remove Sludge