When you’re heating or cooling a temporary structure, the flexible ducting gets a lot of attention. But there is another part of the air-delivery system that can make a major difference in how cleanly and effectively everything comes together: the plenum.
In this blog, RiteChoice® Ducting’s Andy Goede discusses plenums and their role in creating a more complete climate-control solution. The basic idea is simple: a plenum gives flexible ducting a secure, professional connection point at the wall of a tent or temporary structure, helping conditioned air move where it needs to go. For rental companies, tent and structure professionals, HVAC providers, and temporary climate-control specialists, that connection matters.
What is a Plenum in a Temporary HVAC System?
In RiteChoice® applications, a steel plenum provides a connection between flexible ducting and the temporary or semi-permanent structure being conditioned. Rather than improvising a duct opening in a wall or panel, the plenum creates a purpose-built interface for the air-delivery system. RiteChoice® steel plenums are designed to support efficient supply and return air circulation while forming a secure connection with flexible ducting. Current RiteChoice® configurations include single, double, and vertical plenum options for different structure types and airflow requirements.
That makes the plenum more than an accessory. It is part of the pathway that connects your HVAC equipment, ducting, and conditioned space. As our National Sales Manager Andy Goede explains, “the name of the game is to get the air inside the structure in the most effective way and also looking the best. We believe plenums are the way to do that.”
Why the Duct-to-Structure Connection Matters
A temporary climate-control system is only as useful as its ability to deliver heated or cooled air into the space. You can have properly selected HVAC equipment and quality flexible ducting, but the point where that duct enters the structure still needs to be addressed.
A well-designed plenum helps create:
- A secure connection for flexible ducting
- A cleaner, more professional installation
- An effective pathway for supply and return air
- Better integration between HVAC equipment and the structure
- A repeatable solution for rental and temporary-installation applications
For companies that install and remove climate-control systems repeatedly, having equipment designed to work together can also simplify setup compared with creating a makeshift solution for every job.
Single and Double Steel Plenums for Hardwall Structures
Different installations require different amounts of airflow and different duct configurations. RiteChoice® Single and Double Steel Plenums are designed specifically for hardwall temporary and semi-permanent structures. They are available with single or double openings, giving installers flexibility when they need to increase airflow capacity, accommodate multiple duct runs, or separate supply and return air.
Current RiteChoice® specifications include:
- Powder-coated steel construction
- Single or double panel configurations
- 12-inch or 20-inch hole diameters
- Compatibility with most 24-inch-tall door panels and hard walls
The powder-coated steel construction is designed for durability in demanding temporary-environment applications. For rental fleets and companies handling repeated installations, that durability is especially valuable. Equipment needs to perform on the first job, the tenth job, and the jobs that follow.
Vertical Plenums for Fabric Tent Structures
Hardwall structures are only part of the temporary climate-control market. Fabric tents create a different installation challenge because there may not be a rigid wall panel available for a traditional plenum connection. RiteChoice® Vertical Steel Plenums are designed specifically for fabric tent structures. The current model uses an adjustable, floor-supported design and can be mounted to industrial tent styles including rope-and-pole, frame, and clear-span structures. It also incorporates brackets for securing the assembly to vinyl tent walls and internal safety grates. The result is a purpose-built way to introduce supply and return air into a tent while creating a cleaner installation than improvised wall penetrations. For event, rental, industrial, emergency-response, and temporary-facility applications, that can be an important part of delivering a finished climate-control solution.
A More Professional Climate-Control Installation
Performance is important, but so is presentation. Temporary structures are used for everything from industrial projects and emergency-response operations to corporate events and high-end gatherings. In many of those environments, customers do not want HVAC equipment to look temporary simply because the structure is temporary. A purpose-built plenum provides a more finished interface between the ducting and structure.
RiteChoice® Vertical Plenums, for example, are specifically designed to eliminate the need for rough-cut openings or improvised plywood inserts while maintaining the integrity and appearance of the structure. That means installers can think about both airflow performance and the quality of the finished installation.
Think Beyond the Duct
One of the most important takeaways from Andy’s discussion is the value of looking at climate control as a complete air-delivery system. The duct itself is important, but it does not operate alone. A temporary HVAC setup may include: HVAC equipment → flexible ducting → cuffs and connections → plenum → conditioned structure → return-air pathway
Each component has a job to do. When those pieces are selected to work together, contractors and rental professionals can build systems that are easier to deploy, easier to repeat, and better suited to the demands of temporary heating and cooling. That system-level approach is central to how RiteChoice® develops its flexible ducting, plenums, accessories, and related climate-control products.
Which RiteChoice® Plenums Are Right for Your Application?
The best configuration depends on the structure and the airflow strategy.
Choose a Single Steel Plenum when:
You need a straightforward duct connection through a compatible hardwall or panel.
Choose a Double Steel Plenum when:
You need additional airflow capacity, multiple duct runs, or dedicated supply and return connections through a hardwall structure.
Consider a Vertical Steel Plenum when:
You are conditioning a fabric tent or industrial temporary structure where a conventional hardwall panel is not available.
RiteChoice® also offers flexible ducting and complementary climate-control components that can be configured around the requirements of the application.
