1 Position the Radfanon top of your radiator(magnets hold unitfirmly in place)4Warm air circulates moreeffectively around the roomThe Radfan onlyoperates when theradiator is warmWhen the radiatoris cool, the Radfanwill turn itself offInstructionsHow to use your Radfan3Plug the Radfan intonearest power socket(Radfan extensionsare available)2Join the barrel jackconnectors together