High velocity systems can be used for the heating and cooling of your home. These systems tend to be recommended for older homes. High velocity systems use smaller, more flexible tubing than the standard ductwork for low velocity systems. In an older home that lacks a central air conditioning system, a high velocity system is much easier to install. These systems have an additional air handler that works with the standard thermostat. Homes that have radiant floor heating can also benefit from high velocity systems. These systems, as the name suggests, can cool a room much faster, using half the air flow. They can also removed up to 30% more moisture than a standard system. This is great for more humid moments of the year.