Dear Jim: We have central air conditioning, but have a problem keeping all the rooms evenly cool. Someone is always too hot or too cool. What are some simple methods to balance the temperatures ...

In 1948, research by R.G. Huebscher established flow resistance for different shapes of ductwork at equal velocities, which allowed the creation of the duct-sizing calculator or “Ductulator” for ...

Ductwork used to channel or direct air to spaces throughout a building can impact the efficiency of the structure’s HVAC system. That’s why it’s important to properly design and install ductwork and ...