Imperial Mfg Group Usa Inc GV0926-C Adjustable Flue Thimble

Product Description

The IMPERIAL MFG GROUP USA INC GV0926-C is a 28-gauge galvanized steel adjustable flue thimble designed to seal the wall or ceiling penetration where a single-wall vent connector passes through a combustible or non-combustible surface. The thimble adjusts to accommodate wall thickness variations, providing a clean, code-appropriate through-penetration sleeve. At 6 inches inner diameter with an adjustable range spanning 7 inches to 8 inches in depth, it fits standard residential vent connector installations. This component is typically installed by licensed HVAC technicians or sheet metal mechanics during flue venting system assembly or replacement.

This flue thimble is used in residential heating applications where a vent connector must pass through a wall, floor, or ceiling assembly. It is suited for use with oil-fired or gas-fired appliances vented with single-wall B-vent connector pipe. The galvanized construction provides corrosion resistance in the typical temperature and humidity conditions found at vent penetration points. Installers working on furnaces, boilers, or water heaters will encounter this type of fitting when routing flue gas exhaust to a chimney or exterior termination. Package quantity is 6 units.

Key Features

• 6-inch inner diameter sized for standard single-wall vent connector pipe
• Adjustable depth from 7 inches to 8 inches to accommodate varying wall thicknesses
• 28-gauge galvanized steel construction for corrosion resistance
• Provides a clean, finished penetration sleeve at wall or ceiling pass-throughs
• Sold in a package of 6 units

Compatibility

Designed as an OEM-style replacement or new-installation flue thimble for use with 6-inch single-wall vent connectors on residential gas-fired or oil-fired heating appliances.

Installation Notes

Installation should be performed by a qualified HVAC technician or sheet metal mechanic in accordance with local mechanical codes and NFPA 211 clearance requirements. Shut down and allow the appliance to cool completely before servicing any flue or vent connector components. Verify the wall or ceiling assembly material and required clearance-to-combustibles before selecting thimble placement. Do not use this fitting as a substitute for a listed vent pass-through assembly where local codes require a listed product.