If your car has trouble hot starting then i would fit one, if it doesn't then i wouldn't bother.
Reason its fire hazard is because it runs 12v all time and the wires run very close to turbo and manifoild, they are known to get too close to turbo melt and cause fire due to fact they don't have fuse fitted from factory (if it does then its Renault recall).
Also perc fan motor had tendancy to seize up and overload the wiring which would melt it.