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Ventilation Solutions

Gellert’s agriculture ventilation design includes a number of processes like humidification, refrigeration and more. The design also provides a number of features depending on the goals of our customers. Controlled atmosphere storage for apples, potatoes, onions, carrots and more is also known as Post Harvest storage. Gellert is also a system integrator, we design for increased animal production like Dairy, Poultry, and more all integrated with our best in class manufactures and controls. Gellert’s designs are customized and may develop based on conclusions and specifications researched at the University level.

Industry & Applications


Post-Harvest Storage


Grain & Corn

Food Processing


Core Products


Gellert offers a variety of Fans used in the Agricultural, Commercial, and Industrial industries. These include:

  • Panel Fans
  • Vanaxial and Mixed Flow Fans
  • Tubeaxial Fans
  • Plenum Fans
  • Air Make-Up Units
  • Vaneaxial Towers 

Aerovent Panel Fans 

Gellert’s Aerovent direct-drive panel fans are specifically designed for heavy-duty operation in the most demanding environments.

Where Post Harvest Ventilation is concerned, Gellert doesn’t cut corners, there’s too much at stake.

If your fan is not AMCA Certified, your system is not certified for guaranteed air performance. This is key to performance – but also to qualify for utility incentive programs and to meet life and standard criteria. It’s a tough test, but our customers deserve it. *New for 2019, panel fans include enhanced design which creates a boost to 70% increase in strength!

Aerovent Fans have the following features:

  • Fan housings are constructed from heavy gauge steel and are hot dip galvanized for corrosion protection. Gellert will never offer ring fans attached to wooden structures. It just won’t last.
  • Propellers are cast as a one-piece unit from a specialty aluminum alloy that guarantees dependable, uniform performance and are factory balanced and tested, both statically and dynamically.
  • Spiral type Outlet guards are manufactured from electro-plated zinc and welded wire inlet guards with removable sections for easy motor access.

Gellert sells a large variety of Aerovent ventilation products – call us for your ventilation solution!



Gellert’s Centrifugal Fans by CHIEF are designed for aeration systems with medium to high static pressures and deeper grain depths.  Compact and quiet, these Caldwell fans allow for easy field upgrades with low temperature heaters.

  • Heavy gauge galvanized housings from 14″ to 28″
  • Wheels from 10″ to 20″
  • 1HP to 15HP
  • Single and 3-phase ODP motors

Gellert provides many other ventilation options for Grain, Corn, and other product storage with Solutions by Chief.  Check out their products here, and call Gellert to discuss your solution.



Designed for heavy-duty usage in Industrial and Agricultural settings.  Some features include:

  • 1/4HP 2-speed thermally protected direct drive motor
  • Non-skid positioning legs
  • 2800 to 4000CFM range
  • 22-gauge steel housing for durability
  • Roll-around wheels for portability
  • UL and CUL Listed
  • Tilts airflow a full 180 degrees


Gellert’s exhaust fans by Munters are built for performance and reliability – utilizing a number of features.  This is just one example of the many kinds of exhaust fans manufactured by a company who understands the harsh environments demanding good quality and durability.

This particular exhaust fan comes with the unique Munters Motor Drive System which is designed for high performance and low energy consumption.  See more about Munters products here, and contact Gellert to discuss your fan solutions!



Gellert’s ClimaSeal Fresh Air doors are sized specifically for your Gellert Certified ventilation system.

Under-sized Fresh Air Doors create vacuum on a storage – with one of the signs being passage doors that are tough to open.

Doors under vacuum can trick people into thinking they’ve got a powerful system – when in fact – it demonstrates doors that are undersized with a poor design

Gellert’s Fresh Air Doors:

  • Provide a complete air seal to prevent heat transfer and provide precise and consistent temperature control.
  • Are manufactured with a vinyl frame and door insert to guarantee a uniform appearance that will not fade or discolor due to extreme weather conditions.
  • ClimaSeal doors are fitted with heat-tape to prevent ice buildup in even the most extreme climates.
  • ClimaSeal doors can be hinged on either the top or side of the frame to allow for easy installation in any size or style of building.



Gellert’s Ruskin® Backdraft Exhaust Dampers are gravity operated and open with air flow and pressure.

Every damper is built with performance in mind and tested per AMCA standards in Ruskin’s Laboratory.

Backdraft design prevents air from entering the building through the Exhaust Dampers.

Damper blades are constructed from .050” thick extruded aluminum with extruded vinyl blade edge seals and are mounted in an aluminum frame with synthetic bearings.

Gellert’s Ruskin® Backdraft Exhaust Dampers provide high performance with minimal maintenance to guarantee a long operational life.



Gellert’s GDC Door Controller is simple to operate and reliable!

It provides precise control of ClimaSeal Fresh Air Doors or Exhaust Louvers.

Service features include:

  • Status indicating LEDs for all signal power
  • Fusing and full manual override of all control functions to ensure simple trouble shooting.


Distributing and carrying Climate to where it belongs.  Our distribution solutions offer an affordable option to distribute air long distances carrying climate to People,  Animals, Processing, Storage and more. These are just a few of our capabilities:

  • Plenums
  • Fabric Air Ducts or Tubes in a variety of diameters and material with customized focused outlets
  • Convection Tubing
  • Flexible yet reinforced  duct
  • Hoods, Sweeps and Hoppers


Gellert makes doors in a variety of applications.  Depending on your needs, we can provide High and Regular Speed options as well as the some of the following:

  • Cleanroom Doors
  • Man Doors
  • Gellert Panel
  • Air Door
  • Fabric and Rubber
  • High Speed
  • Rollup


Enclosed solutions include our own GellertSpaces which offer a Modular Lab, Grow and Clean Rooms. Gellert can also provide simple to full featured solutions to segment, contain, and divide rooms for climate control. These include:

  • Safety, Air, and Simple Plastic Curtains
  • Greenhouse
  • Dairy
  • Plenum
  • Control Rooms
  • Any room where a Climate is needed