Question

A stove has a surface temperature of 500 K. The room it is in has a temperature of 310 K. The emissivity of the stove is 0.9, and its surface area is 4.5 m2. What is the net power radiated into the room by the stove?

Answer 1

$$P=e\sigma A(T_2^4-T_1^4)$$

$$P=(0.9)( 5.67 \cdot 10^{−8} )(4.5)(500^4-310^4)\\=12231\ W$$