U.S. Department of Energy Energy Efficiency & Renewable Energy U.S. Department of Energy Energy Efficiency & Renewable Energy

Attributes of Trunk and Branch Systems

Question: 

Trunk and branch systems

A.  Are the most common type of hot water delivery system.

B. Are most suitable for larger homes in terms of maximizing hot water delivery system efficiency.

C.  Are characterized by one long, large diameter main line (i.e., the “trunk”) that runs from the water heater to the farthest fixture in the house.

D.  Have the greatest potential to be inefficient.