A forced hot water circulating system can be classified as the following type:
a) loop system
b) one pipe system
c) two pipe direct return system
d) two pipe reverse return system
e) all of the above
Answer: E
A forced hot water circulating system can be classified as the following type:
a) loop system
b) one pipe system
c) two pipe direct return system
d) two pipe reverse return system
e) all of the above
Answer: E