Linear Troughs

AirFixture UFAD Linear Trough Technology

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.


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

Literature outlining our standard and RAL diffuser color options.

What our clients say about us

“This level of quality and communication exceeds all expectations and I often tell my clients and colleagues that I personally regard AirFixture as being the Gold Standard and the best all in one solution for UFAD. Simply put they have been and will always be my basis of design and I always look forward to my next UFAD project!”

Christopher T. Varughese

Mechanical Designer