Amazon Sale - Purchase URBAN KING Alastor Fan Heater for room worth Rs.1899 at Rs.799 only. A fan heater is a heater that works by using a fan to pass air over a heat source (e.g. a heating element). This heats up the air, which then leaves the heater, warming up the surrounding room. They can heat an enclosed space such as a room faster than a heater without fan, but, like any fan, create audible noise. No coupon code needed. Shop now!