Energy Efficiency Services Limited
Under the National Energy Efficient Fan Programme, EESL provides BEE 5 Star rated ceiling fans which are 30% more energy efficient than conventional fans. Fans will be sold for Rs. 1,150 per fan. EESL has distributed 6.2 lakh energy efficient fans under this scheme which will save 2.4 lakh kWh and Rs 8.2 lakh per day to the consumers. The price difference is Rs. 500 which is the primary reason for its low penetration, along with the lack of awareness. With the usage of these energy efficient fans it is estimated that consumer’s electricity bills will reduce by about Rs. 700-730 per year, and recover the extra cost in less than 2 years.
Space heater
However the metal reflectors needed to be fairly heavy gauge, and if the size was reduced then the metal housing would get too hot to be safe. In the mid-20th century, the cheapest heaters were radiative, but with the heating wires stretched relatively closely across a larger thin metal reflector separated from a thin metal housing. A small fan blew just enough air between the housing and the reflector to cool them; the main output to the room was the radiative heat and not the heated air. Having the heating wires stretched across a larger area meant that fewer expensive ceramic insulators were needed, and the small fan was cheaper than a larger or heavier housing.