A common complaint HVAC professionals across the country have to deal with during the summer is the large temperature differences in two-story homes. The second floor is typically burning up, while the first floor is extremely cold. It is common for temperature differences of 10°F or more to be found in homes with this problem.
These temperature-related issues are often corrected simply by renovating the duct system to cure duct leakage and air-balancing issues, which created pressure-related problems in the building. There are instances, though, when you can have the perfectly designed and installed HVAC system and these temperature complaints still exist.