19-1/2" x 48" Themropan Sheet

Details

Model: 19048
Manufacturer: Thermo Manufacturing
Product Name: Thermopan Return Air Panning
Part Number: 539170
Description: Standard Fire-Resistant Duct Panning Sheet, 19.5 in Width x 47.5 in Length.

Product Overview

The Thermo 19048 Thermopan Return Air Panning is a pre-fabricated duct panning sheet engineered for the construction of return air pathways between joists and stud cavities in HVAC systems. Manufactured as a high-quality alternative to sheet metal, Thermopan panels consist of a corrugated insulating core faced with aluminum, providing structural strength, rigidity, and fire resistance. These pre-cut, lightweight panels are designed for quick field installation without the need for shop fabrication. The material helps reduce duct noise and vibration transmission while maintaining consistent airflow within residential and light commercial return air systems.

Technical Specifications

• Manufacturer Part Number: 19048
• Alternate Part Number: 539170
• Product Type: Duct Panning Sheet for Return Air Construction
• Material Composition: Corrugated insulation core laminated with aluminum facing
• Fire Rating: Standard fire-resistant construction per manufacturer specification
• Dimensions: 19.5 inches (width) x 47.5 inches (length)
• Thickness: Factory-standard Thermopan panel thickness (per Thermo specification)
• Weight: Lightweight for field handling and rapid installation
• Thermal Properties: Provides insulation barrier along return air cavities
• Acoustic Properties: Reduces duct-borne and structure-transmitted noise
• Mounting Method: Stapled or mechanically fastened to wood floor joists or wall studs
• Installation Orientation: Horizontal or vertical between framing members
• Packaging: Supplied 25 panels per carton
• Application: HVAC return air systems in residential and light commercial installations
• Compliance: Meets applicable building and mechanical code requirements for return air construction

Installation Notes

• Inspect joist or stud cavity dimensions prior to installation to ensure proper fitment.
• Position Thermopan with aluminum facing oriented toward the return air cavity.
• Secure panel edges using staples or fasteners at regular intervals along the joist or stud flange.
• Seal all perimeter seams and penetrations with approved HVAC mastic or foil tape to maintain air integrity.
• Verify return air continuity and system pressure balance after installation.

Summary

The Thermo 19048 Thermopan Return Air Panning is a fire-resistant, insulated alternative to sheet metal duct construction for return air plenums. Measuring 19.5 inches by 47.5 inches, this lightweight, pre-cut panel installs quickly between joists or studs to create efficient return air pathways. Designed for professional HVAC system construction, it provides durable performance, noise reduction, and time-saving installation in both residential and light commercial applications.