Flexibility That Fits Your Design

At Unico we believe the HVAC system should fit your design, not the other way around.

You’ve spent hours crafting a masterpiece of space, incorporating your client’s needs, wishes, and personality to create a one-of-a-kind balance of efficiency, functionality and beauty.

The last thing you want to do is dedicate precious space to housing mechanical equipment or include soffits or other concealments to hide HVAC ductwork. And with The Unico System small-duct high-velocity (SDHV) central HVAC you won’t.

Modular air handling equipment and small, flexible supply ducts mean you don’t have to make any sacrifices to your original vision.  And the system’s round or slotted outlets come in a variety of constructions, finishes and stains, so that they virtually disappear within your aesthetics.

Finishes That Compliment Rather Than Detract

The Unico System is not just a pretty face, it is beauty balanced with science.

Unico System outlets, either round (2-inch or 2.5-inch inner diameter/ 5-inch outer diameter) or slotted (1-inch by 8-inch), are available in a variety of painted plastic finishes or stainable wood species to blend into any style of decor. They can even be wallpapered to become virtually invisible in their surroundings, providing better aesthetics than conventional rectangular registers. Unico outlets are also easily customized to better fit your design.

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Small Size, BIG Advantage                                                                                                    


Indoor air handling equipment is more compact than conventional systems, reducing space occupied by mechanical equipment.

Low-Profile Plenum

Typically located in attics or basements, is one-third the size of traditional main ducting and available in round or rectangular metal or fiberglass construction.


Supply tubing weaves through the tightest of existing wall, ceiling, and floor cavities eliminating the need to handcuff your design with space-wasting soffits or other concealments.


The Unico System can provide cooling only, heating only, or both using electricity or water as a heating/ cooling source. It can provide cooling with a refrigerant or chilled water and heating with hydronics or a heat pump coil, either air or geothermal sourced. Indoor components are compatible with virtually all major high-efficiency outdoor units on the market.

Superior Technology = Unparalleled Comfort and Energy Efficiency             

Better Air Distribution

In contrast to the "dump and throw" method of traditional central air systems, Unico works on the principle of aspiration, creating a gentle suction around the delivery outlet that draws room air into its stream of conditioned air, eliminating drafts and hot/cold spots, and providing even temperatures from ceiling to floor, room to room. 

Better Humidity Removal

Unico cooling coils remove 30% more moisture than conventional AC systems. This is not only beneficial in geographies with humid climates, but also offsets the humidity caused by activities within today's tighter homes. Occupants in homes equipped with The Unico System can feel just as comfortable at higher thermostat settings, adding to the system's energy efficiency.

Better Indoor Air Quality (IAQ)

Because Unico ducting is so tightly sealed, there is less opportunity for the entrapment and dispersal of allergens or other contaminants and fresh, outside air is easy to incorporate into the air handler configuration.

Better Energy Efficiency

Conventional forced-air systems lose as much as 40% of their conditioned air through leakage, especially when ducting is located in an unconditioned area like an attic or crawlspace. But The Unico System's smaller, tighter ducts lose virtually none of their conditioned air and don't experience the degree of thermal loss associated with traditional HVAC systems. Unico blowers are available with programmable, variable speed and electronically commutated motors (ECMs) that use less electricity than their conventional counterparts. Unico air handlers are also compatible with virtually every major brand of outdoor condensing or heat pump. When paired with a high-SEER outdoor unit, owners can be sure The Unico System is providing actual delivered efficiency and not losing conditioned air to duct leakage or thermal transference.

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Free Custom Design Services

If you have a project that needs design assistance, we offer a free service which includes a duct design and an estimated materials list.  All you need to do is complete the HVAC Load Calculation Request form on our website and send us your plans. 

Upon submittal of your plans and load calculations, we'll send you an email with a case number as confirmation of receipt.  Unico will then provide an overview of the seasonal climate conditions of the project's geography, a duct design layout indicating optimal placement of the Unico plenum, supply tubing, and outlets and a complete materials list.  Turnaround times for completed designs are typically within 5 business days.

The Choice of Preservationists, LEED, and Net-Zero Project Designers

Inclusion of The Unico System ensured the Resonance House in Lexington was Kentucky's first home to be awarded LEED certification.

Due to its ability to provide state-of-the-art comfort without diminishing a structure's original integrity, The Unico System has been installed in hundreds of historic spaces and is a longtime partner of the National Trust for Historic Preservation. It's maximal energy efficiency aspects have also made it the HVAC choice for countless LEED, Net-Zero, and high-performance homes in North America and abroad.

For more information about how The Unico System can free your design visit our website, or contact our Design Services team and upload your plans and load calculations for a free duct layout and materials list.