In an internally fired, gas-fired infrared heater, the surface temperature is about:
a. 300°C
b. 400°C
c. 500°C
d. 600°C
e. 700°C
Answer: B
In an internally fired, gas-fired infrared heater, the surface temperature is about:
a. 300°C
b. 400°C
c. 500°C
d. 600°C
e. 700°C
Answer: B