Which of the following statements about duct leakage losses is true?
a) The effects of air leakage in supply air ducts are the same as those in return ducts.
b) Air leakage varies from 40% to 45%.
c) Leakage inspection can only be done after the duct is covered in insulation.
d) Losses from bare supply air ducts within the conditioned space have a substantial impact on loss calculations.
e) Losses due to air leakage from furred supply air ducts within the conditioned space can only be evaluated on the basis of judgement.
Answer: E