Not that long ago, anyone with an older home lacking conventional ductwork had very limited choices for temperature control. Other than tearing down walls and ceilings and taking on a huge, messy and expensive remodeling project, there were few options. Installing ductwork takes up a great deal of space and often compromises architectural integrity in historical homes. Those with walls and ceiling constructed of the original plaster and lath rarely found it feasible to incorporate a duct system. Homeowners struggled to get by with baseboard heaters, windows air conditioners and box fans. The homes were overheated throughout the summer and chilly during the summer. The equipment detracted from aesthetics and blocked views from windows. Fortunately, modern engineering has led to a system designed specifically to retrofit into older homes without damage or disruption. High-velocity heating and cooling systems feature the innovation of mini-ducts that are only two inches in diameter. The narrow ducts are flexible enough to snake through existing walls around studs, plumbing pipes and electrical outlets. They link to circular-shaped vents that are six inches across and available in all different colors. The vents allow freedom of location and incorporate unobtrusively into nearly any decor. The actual heating/cooling unit is compact enough to fit into a closet or the attic. A high velocity system sends conditioned air into the room at an extremely high rate of speed, creating a gentle suction called aspiration. The old and new air mixes quickly to rapidly raise or lower temperature. The combination of shorter running times, smaller air ducts and insulated ducts achieves outstanding efficiency levels by minimizing energy waste.