Small duct/high-velocity HVAC systems that can be easily installed.


Many older homeowners without forced-air HVAC systems want to add central air conditioning and heating ducts. But, they get frightened with the cost & challenges of the installation process. Ductwork installation may necessitate the removal of massive walls, floors, or ceilings and the installation of ugly box chases. High-velocity heating and cooling systems, on the other hand, minimize these changes by employing small diameter ducts that can be threaded more easily through floor, ceiling, and wall spaces. Most manufacturers claim that these high-velocity systems are quieter than standard air-delivery duct systems and provide better dehumidification, room air mixing, and energy efficiency.
High-velocity systems use a unique fan coil & air handling unit that generates high pressure air forced through small diameter ducts. High-velocity heating & cooling systems use standard outdoor condensing units for air conditioning and 0heat pump systems.

Path Attributes

Compared to conventional systems, a mini-duct air distribution system can remove approximately 30% more moisture in the cooling mode. As a result, you will get more cooler, dryer air. With Lower humidity levels, you can get a more pleasant environment, even at a higher temperature.
You can install a mini-duct air distribution system anywhere in your home with little or no remodeling.

Ease Of Implementation

You can easily install the mini-duct air distribution system. The tubing is designed in a way that it can fit in the existing structure with little or no remodeling. The tubing requires about 1/10th of the space of traditional central air conditioning.
Certified contractors contribute high-velocity air distribution systems, or you can purchase directly from the manufacturer or distributor. However, it is crucial to remark that some heating and cooling professionals are unfamiliar with high velocity ducts. The systems commonly require a more significant number of outlets.

Initial Cost

The mini-duct system’s initial costs are pretty high than their usual counterparts.

U.S. Code Acceptance

High-velocity air distribution systems are certified by the Air Conditioning and Refrigeration Institute (ARI) for use with various heat pumps, air conditioners, and heat sources.


It is recommended that professionals must install High-velocity heating and cooling systems. Unlike systems with standard-sized ducts, small diameter ducts can be run via floor joist penetrations.
Air outlets placed in strategic locations in a room, such as ceiling corners or beside windows or doors, can produce a high-velocity output that enhances room air mixture without causing discomfort to occupants.


  • The mini-duct system comes with a warranty of one year from the date you install it.
  • However, there are chances that some part of the system may not have this warranty.
  • For more information, you can check the store.


Compared to conventional forced-air systems, manufacturers claim that dehumidification with high-velocity air distribution is better. In Small Duct High-Velocity systems, air loss is low because duct construction is tiny and mechanical connections to other distribution system components are tight.
Furthermore, the other benefits of small duct systems include:
  • Increased ventilation and dehumidification.
  • Increased room comfort.
  • Better room air mixing.
  • Lower operating noise.
During the air conditioning season, lower humidity levels can allow occupants to feel comfortable with the thermostat set at a higher temperature, lowering energy expenses. Delivering air at a higher velocity through smaller supply lines mixes the room air more effectively in both heating and cooling seasons, decreasing temperature stratification and reducing the requirement for duct outlets near windows or exterior walls to avoid hot/cold spots.
High-velocity systems need special ductwork; therefore, their installation costs are higher than standard air conditioning systems. However, high-velocity AC systems are an ideal choice for new construction; the high installation costs of high-velocity air conditioning systems could be neglected; especially if you consider the lower utility costs and maintenance. Compared to conventional AC, high-velocity air conditioning systems experience approximate 25% less leakage in the ducts. This means less energy consumption, better utility, and more efficiency.
Maintenance expenses will also decrease by lessening the size of the HVAC systems and equipment. High-velocity air conditioning systems are a perfect choice for saving money in the long term.
Installation costs become more affordable in the older constructed buildings, given the fact that the prices of structural renovations are significantly lower than installing a conventional AC system with large ducts.

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