A refractory burner disadvantage is
a) high initial cost
b) too much fuel preheat
c) low radiant heat
d) low combustion efficiency
e) overheating of boiler metal
Answer: A
A refractory burner disadvantage is
a) high initial cost
b) too much fuel preheat
c) low radiant heat
d) low combustion efficiency
e) overheating of boiler metal
Answer: A