The boiler system component that monitors water temperature and possibly controls water circulation is the
_____.
a. water level control
b. zone control
c. makeup water valve
d. aquastat
Question 2
It is acceptable to vent a gas appliance through a masonry chimney as long as _____.
a. a tile or metal liner of the correct size is used
b. the chimney is inspected to ensure it is in good condition
c. the furnace is common-vented with another gas appliance
d. a double-wall vent connector is used at the chimney opening