About The Unico System
About Unico, Inc.:
The Company Behind The Unico System
For more than 40 years, Unico, Inc. has been redefining what’s possible in whole-home heating and cooling. As a family-owned American HVAC manufacturer, we specialize in The Unico System, the industry-leading small-duct high-velocity (SDHV) heating and cooling solution designed to deliver exceptional comfort without compromising a home’s architecture or design.
From historic renovations to modern custom homes and commercial spaces, The Unico System provides a flexible alternative to conventional HVAC systems. Our commitment to American manufacturing, innovative engineering, and customer support has helped us bring comfortable, efficient heating and cooling to millions of homes and buildings around the world.
What Is The Unico System?
The Unico System is a small-duct high-velocity (SDHV) heating and cooling system designed to deliver quiet, even temperatures throughout a home or building while using significantly less space than conventional HVAC ductwork.
Unlike traditional forced-air systems that require large ducts and registers, The Unico System uses compact air handlers, flexible insulated supply tubing, and discreet outlets that blend into a home’s interior.
This unique design makes The Unico System an ideal solution for historic homes, custom homes, renovations, and other spaces where traditional ductwork may be difficult or impractical to install.
Our Story:
How The Unico System Began
It all began in a small office in the spring of 1985, when Joe and Sharon Intagliata started Unico with an idea, a handful of employees, and a vision for a better way to heat and cool homes.
Drawing on their experience in the HVAC industry, they recognized the challenges of installing traditional heating and cooling systems, particularly in older homes where bulky ductwork could require significant structural modifications.
Their vision helped shape what would become The Unico System, an innovative small-duct high-velocity HVAC solution designed to deliver whole-home comfort while preserving the character and architectural details that make each home unique.
What began as a small family business has grown into an internationally recognized HVAC manufacturer, with two manufacturing facilities totaling more than 150,000 square feet of manufacturing and storage space.
Today, the Intagliata family’s entrepreneurial spirit continues to guide Unico’s commitment to innovation, craftsmanship, and customer service.
American-Made HVAC: Built with Pride in Missouri
At Unico, American manufacturing is more than part of our history. It’s an important part of how we maintain quality, support our customers, and continue improving our products.
The Unico System is manufactured in Arnold, Missouri, through SGI Manufacturing, a subsidiary of Unico, Inc.
Established in 2007, SGI Manufacturing produces the metal components used in our blower and coil cabinets, along with other essential system parts.
Our manufacturing process combines precision technology with hands-on craftsmanship. From metal fabrication and coil assembly to insulation, testing, and final inspection, our team takes pride in the quality of every system we build.
Keeping manufacturing in the United States allows us to maintain greater oversight of production, support American jobs, and provide dependable products and service to our customers.
Learn More About SGI Manufacturing
Frequently Asked Questions About Unico
Where is The Unico System manufactured?
The Unico System is proudly made in the USA, with manufacturing operations in Arnold, Missouri, near St. Louis. Through its subsidiary, SGI Manufacturing, Unico combines advanced manufacturing technology with hands-on craftsmanship to produce high-quality HVAC equipment.
Is Unico an American-owned company?
Yes. Unico, Inc. is a family-owned American company founded by Joe and Sharon Intagliata in 1985. What began as a small business in Missouri has grown into an internationally recognized manufacturer of small-duct high-velocity heating and cooling technology.
What makes The Unico System different from traditional HVAC systems?
The Unico System uses compact air handlers, flexible insulated supply tubing, and discreet outlets instead of the bulky ductwork required by traditional forced-air HVAC systems. Its unique design delivers quiet, even heating and cooling while preserving a home’s architectural details and usable living space.
Does Unico offer free HVAC system design services?
Yes. Unico offers complimentary HVAC system design services for residential and commercial projects. Our in-house design team works with contractors, architects, builders, and homeowners to develop customized layouts, equipment recommendations, and material lists to help simplify the installation process and ensure optimal system performance.
Does Unico provide free HVAC contractor training?
Yes. Through Unico University, we offer free online, hands-on field, and factory training opportunities for HVAC professionals. Our training programs help contractors develop the knowledge and skills needed to properly design, install, and service The Unico System.

