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AirFixture Linear Troughs (Convective Heating/Air Valve Cooling) 

Because traditional wall mounted heating units are expensive and interruptive to architectural aesthetics, years ago, architects asked AirFixture to develop an in-floor perimeter convective heat solution to get the hot water or electric fin tube perimeter heaters off the wall.

Working with major raised access floor manufacturers, we developed the first self-supported packaged linear heating and cooling trough units.

Linear troughs provide high capacity airflow without restricting under floor volume and are available as perimeter heating+cooling / heating-only / cooling-only systems. These are silent and require little to none of the maintenance of a fan.

UFAD Linear Trough Design Flexibility

A broad range of designs is available, including constant or variable volume plenum air cooling, ducted fan-powered heating/cooling, electric heating, hydronic heating, and chilled water (In Floor Chilled Beam) cooling. Customized dimensions, configurations, and materials are available to meet the layout and performance needs of any project.

Associated linear grilles are extruded aluminum, stainless steel or other decorative materials; segmented and continuous options are available in a variety of finishes, sizes, and air flow capacities to meet project design needs.

Whatever the scope, AirFixture has the linear trough selection and products you need to meet your UFAD project design specifications and budget. Contact us to learn more about our complete line of UFAD products.


Factory Mounted Valve Package

We have introduced a valve package component to our CLW and SoHo-w product lines. This addition, featuring a factory-installed hot water coil valve package, not only streamlines the installation process but also upholds the consistent and reliable quality that you've come to associate with AirFixture. The flexibility in control options and valve package configurations further accelerates construction time.

  • Manual Ball Valve with Memory Stop
  • Unions
  • Y-Strainer


Trough and Grille



Hydronic Heating


Electric_HeatingElectric Heating



Linear Grille Configuration

AirFixture is our preferred go-to expert for all solutions related to Underfloor Air Distribution. Their inputs help us with not only the design of the project but also successful execution and client satisfaction.
Manjunath Swamy
Mechanical Contractor, Vortex Consulting Engineer
I’m always worried about trying something radically different in our projects. What if it doesn’t go to plan? What if there’s something we haven’t considered? Those concerns were completely unfounded with UFAD. it was far less complex, and way easier to plan and install than a traditional system.
Isaac Chazbani
Mechanical Contractor, New York City

A reference guide of our standard linear trough configurations, outlining air supply/return, mounting and linear grille options.

Download Linear Trough Guide


Literature outlining our standard and RAL diffuser color options.

Download Standard Color Sheet

Download RAL Color Sheet 


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