The convection tubes of a typical up-draft model fired heater are located in the
a) firebox
b) stack
c) radiant zone
d) breeching
e) refractory lining
Answer: D
The convection tubes of a typical up-draft model fired heater are located in the
a) firebox
b) stack
c) radiant zone
d) breeching
e) refractory lining
Answer: D