When my hubby and I first bought our home, the former owners were heating with space gas furnaces and cooling with portable window units! One of our first priorities was to invest in centralized temperature control. I undoubtedly hated the appearance of the portable heating and cooling units. They weren’t powerful enough to keep up with demand and very weren’t all that energy efficient. However, our home is around many hundred years seasoned and lacks conventional HVAC duct. The walls and ceilings are still the original plaster and the interior studs have been turned sideways to maximize living space. There’s not enough room to accommodate traditional HVAC duct. Trying to install a conventional heating and cooling plan would have resulted in a sizable mess, lengthy project and enormous expense. We needed to find a more flexible alternative for our home. I brought in a licensed Heating and A/C contractor to look over the condo and supply recommendations. She immediately commanded a high velocity heating and cooling system. This category of plan was designed certainally to retrofit into older homes without causing major disruption or damage. It uses flexible mini ducts that are only many inches in diameter and can be snaked through existing walls and accommodate obstacles such as plumbing pipes and electrical outlets. The ducts affix to vents that are only many inches in diameter. The actual heating/cooling component is attractively compact and can be installed in the attic. The plan works through a process of aspiration, introducing the conditioned air at a high rate of speed and creating a gentle suction. This allows it to raise or lower room temperature very rapidly. The high velocity heating and cooling plan has been ideal for us.