Product Overview
The Imperial GV0303-C/8 28-302 is an 8-inch, 28-gauge galvanized adjustable stove pipe elbow. This four-piece elbow is designed to provide flexibility in stove pipe installations, allowing adjustment from a straight configuration up to a 90-degree angle. It is suitable for various heating applications requiring a durable and adaptable exhaust connection.

A silver-colored, galvanized steel stove pipe elbow, designed to adjust from a straight position up to a 90-degree angle. It features a four-piece construction with visible seams and rivets, and a smooth interior for efficient airflow.
Setup and Installation
Proper installation is crucial for safety and efficiency. Always consult local building codes and fire regulations before beginning installation. If you are unsure about any step, seek professional assistance.
Safety Precautions:
- Ensure the heating appliance is turned off and cooled down before handling stove pipes.
- Wear appropriate personal protective equipment, including gloves and eye protection.
- Work in a well-ventilated area.
Installation Steps:
- Planning: Determine the required angle and length for your stove pipe run. The adjustable elbow allows for angles from straight to 90 degrees.
- Connection: Connect the male end of the elbow (crimped end) into the female end of the adjacent stove pipe section or appliance collar. Ensure a snug fit.
- Adjustment: Carefully rotate the sections of the elbow to achieve the desired angle. The four-piece design allows for smooth adjustment.
- Securing Joints: Secure all pipe joints, including those involving the elbow, with at least three sheet metal screws per joint. This prevents separation and maintains structural integrity.
- Sealing (Optional): For enhanced sealing, apply high-temperature silicone sealant or furnace cement to the joints before securing with screws.
- Support: Ensure the entire stove pipe system, including elbows, is adequately supported according to manufacturer guidelines and local codes.
- Clearances: Maintain proper clearances to combustible materials as specified by the heating appliance manufacturer and local fire codes.
Operation
The Imperial adjustable stove pipe elbow functions as a conduit for exhaust gases from a heating appliance. Its primary operational feature is its adjustability. Once installed and secured, the elbow maintains its set angle, directing the flow of exhaust gases safely into the chimney or venting system.
- Adjustability: The four-piece construction allows for precise angular adjustments during installation, accommodating various spatial requirements. Once adjusted and secured with screws, the elbow maintains its position.
- Galvanized Finish: The galvanized coating provides corrosion resistance, contributing to the longevity of the product in typical indoor heating environments.
No user interaction is required with the elbow itself during the normal operation of the heating appliance, beyond ensuring it remains securely connected and free of obstructions.
Maintenance
Regular inspection and maintenance of your stove pipe system, including the elbow, are essential for safe and efficient operation.
- Annual Inspection: At least once a year, or more frequently with heavy use, inspect all stove pipe sections and joints for signs of wear, corrosion, creosote buildup, or damage.
- Creosote Removal: If creosote buildup is observed, especially in the elbow's interior, it must be removed. Creosote is highly flammable and a fire hazard. Use appropriate chimney brushes and tools for cleaning.
- Joint Integrity: Check that all joints, particularly those involving the adjustable elbow, remain securely fastened with sheet metal screws. Tighten or replace screws as needed.
- Corrosion Check: Inspect the galvanized finish for any signs of significant rust or corrosion that could compromise the pipe's integrity. Minor surface discoloration is typically normal.
- Damage Assessment: Look for dents, cracks, or holes in the pipe. Any significant damage warrants replacement of the affected section.
- Ventilation: Ensure that the area around the stove pipe and elbow remains clear of combustible materials.
Troubleshooting
This section addresses common issues that may arise with stove pipe systems, including those involving adjustable elbows.
- Smoke Leakage at Joints:
Possible Cause: Loose connections, inadequate sealing, or damaged pipe.
Solution: Ensure all joints are securely fastened with sheet metal screws. Apply high-temperature sealant or furnace cement to all joints. Inspect for damage and replace if necessary. - Poor Draft/Smoke Back-up:
Possible Cause: Creosote buildup, obstruction in the pipe or chimney, improper pipe sizing, or excessive bends.
Solution: Clean the stove pipe and chimney thoroughly. Check for any physical obstructions. While the adjustable elbow allows for bends, excessive or sharp bends can impede draft. Ensure the overall system design is appropriate for the appliance. - Corrosion/Rust:
Possible Cause: Exposure to moisture, condensation, or harsh chemicals.
Solution: Ensure the system is properly insulated to prevent condensation. Address any sources of moisture. If corrosion is severe and compromises the pipe's integrity, replace the affected section. - Elbow Not Holding Angle:
Possible Cause: Insufficiently secured joints.
Solution: Ensure at least three sheet metal screws are used at each joint of the elbow to firmly secure its position.
Product Specifications
- Brand: Imperial
- Model Number: GV0303-C/8 28-302
- Item Dimensions (L x W x H): 9 x 8 x 18 inches
- Connector Type: Elbow
- Exterior Finish: Galvanized
- Item Weight: 3.9 Pounds
- Number of Pieces: 4 (for the elbow construction), available in packs of 8
- Manufacturer: Imperial Mfg Group
- UPC: 063467110064
- Thickness: 28 gauge
- Adjustability: From straight through 90 degrees
Warranty and Support
Specific warranty information and direct customer support details for the Imperial GV0303-C/8 28-302 stove pipe elbow are not provided in this manual. For warranty claims, technical assistance, or further product inquiries, please refer to the official Imperial Manufacturing Group website or contact their customer service directly. Keep your purchase receipt as proof of purchase.
You may also find additional resources and contact information by visiting the Imperial Store on Amazon.





