Seal-tite 92-142808 Return Air Furnace Base

Product Description

The SEAL-TITE 92-142808 is a return air base designed for use with gas furnace installations. It provides a sealed platform at the base of the furnace that channels return air from the living space back into the air handler section of the unit. Measuring 14.5 inches wide by 28.5 inches long by 8 inches tall, this base fits between the floor or platform and the furnace cabinet, creating a defined return air plenum. HVAC technicians install this component during new furnace installations or when replacing a damaged or improperly sized return air base.

This return air base is suited for residential forced-air heating systems where the furnace is installed in an upflow configuration. It is commonly used in utility rooms, closets, and mechanical spaces where the furnace sits on a platform or directly on the floor. The 8-inch height dimension makes it appropriate for applications where low-clearance return air entry is required at the base of the unit.

Key Features

• Dimensions of 14.5 x 28.5 x 8 inches sized for standard residential furnace footprints
• Designed to create a sealed return air pathway at the furnace base
• Suitable for upflow furnace installations on floor-level or platform mounts
• Supports proper return air channeling for system efficiency

Compatibility

Designed as an OEM-style replacement return air base for residential gas furnace installations requiring a 14.5 x 28.5 x 8 inch base configuration.

Installation Notes

Installation is typically performed by a licensed HVAC technician. Shut down the furnace and disconnect power at the breaker before beginning any work at the furnace base. Verify that the base dimensions match the furnace cabinet footprint and the existing return air opening before securing the unit. Follow local mechanical codes and manufacturer guidelines for sealing the base to prevent air bypass.

Technical Specifications

• Width: 14.5 inches
• Length: 28.5 inches
• Height: 8 inches

Standard Information

• Brand: SEAL-TITE
• Manufacturer Part Number: 92-142808