Question

Room heaters have polished reflectors at the back of the heating element. Why?

Answer 1

room heaters have polished reflectors because bright ,polished reflectors reflect heat more efficiently and hence more heat is generated in front of the heater ,at the same time since they reflect heat the appliance or the unit is saved from getting heated or catching fire.

Answer 2

Electric room heaters are provided with a curved,polished surface behind the rod like heating element.this polished surface reflects back all the heat radiations falling on it ,concentrating it on forward direction.so that we feel even the heat even if stand a few feet away from the heater.

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