The two pipe reverse return hot water heating system has the advantage of:
a. All circuits have the same length
b. Low cost
c. No circulating is needed
d. Elimination of an expansion tank
e. Elimination of air vents
Answer: A
The two pipe reverse return hot water heating system has the advantage of:
a. All circuits have the same length
b. Low cost
c. No circulating is needed
d. Elimination of an expansion tank
e. Elimination of air vents
Answer: A