The minimum temperature at which a hot water boiler should be operated to prevent flue gas condensation is ___C.
a. 65
b. 77
c. 95
d. 88
Answer: B
The minimum temperature at which a hot water boiler should be operated to prevent flue gas condensation is ___C.
a. 65
b. 77
c. 95
d. 88
Answer: B