A subject that is sure to get some hearty debate going is whether ducts inside a conditioned space should be sealed or not. What is your opinion on this sticking point of energy efficiency?
On one side of this debate, you have those who adamantly proclaim that sealing a duct system located inside the conditioned space has little impact on energy savings since any leakage is inside the conditioned space. After all, any air leakage is still within the conditioned space and technically not being lost to the outside.