1. Introduction
Thank you for choosing the ONLYFIRE GRILLS GS306 Rectangular Charcoal BBQ Hibachi Grill. This portable grill is designed for outdoor cooking, offering a versatile solution for yakitori, Korean BBQ, and general grilling. Crafted from thickened ceramic clay, it provides excellent heat retention and durability. This manual provides essential information for safe and effective use, including setup, operation, maintenance, and troubleshooting.
2. Safety Information
- Outdoor Use Only: This grill is intended for outdoor use in a well-ventilated area. Do not use indoors or in enclosed spaces.
- Stable Surface: Always place the grill on a flat, stable, non-combustible surface.
- Keep Away from Combustibles: Maintain a safe distance from flammable materials, structures, and vegetation.
- Children and Pets: Keep children and pets away from the hot grill.
- Hot Surfaces: The grill's ceramic body and metal components become extremely hot during use. Use heat-resistant gloves and the provided grid lifter when handling.
- Charcoal Safety: Use only charcoal as fuel. Do not use gasoline, kerosene, or alcohol to light or relight charcoal. Use charcoal starters specifically designed for grills.
- Ash Disposal: Allow charcoal to cool completely before disposing of ashes.
- Ventilation: Ensure proper airflow by adjusting the ventilation doors to control heat and prevent excessive smoke buildup.
3. Package Contents
Verify that all components are present before assembly and use:
- Ceramic Charcoal Grill Body (with wooden handles)
- Stainless Steel Grill Stand
- Charcoal Plate (perforated)
- Stainless Steel Cooking Grid (13.8 x 6.9 inches)
- Grid Lifter (with anti-scalding handle)

An illustration detailing the grill's components: charcoal grill body, charcoal plate, cooking grid, and grid lifter, along with overall dimensions.
4. Setup
The ONLYFIRE GRILLS GS306 comes largely pre-assembled. Follow these steps to prepare it for use:
- Unpack: Carefully remove all components from the packaging.
- Place Charcoal Plate: Insert the perforated charcoal plate into the bottom of the ceramic grill body. Ensure it sits securely.
- Position Cooking Grid: Place the stainless steel cooking grid on top of the ceramic grill body.
- Ensure Stability: Confirm the grill is placed on a stable, heat-resistant surface before adding charcoal.

An internal view showing the perforated charcoal plate and the adjustable ventilation doors designed for optimal airflow and heat control.
An official product video demonstrating the assembly and use of the ONLYFIRE GRILLS GS306 Portable Charcoal Grill, including placing components and grilling various foods.
5. Operating Instructions
5.1 Lighting the Charcoal
- Add Charcoal: Place your preferred charcoal (e.g., lump charcoal, briquettes) onto the charcoal plate. Do not overfill.
- Ignite: Use a charcoal chimney starter or appropriate fire starters to ignite the charcoal. Never use flammable liquids like gasoline.
- Wait for Ash: Allow the charcoal to burn until it is mostly covered with a light gray ash (approximately 15-20 minutes).
5.2 Heat Control
The grill features adjustable ventilation doors on the sides to control airflow, which directly impacts the charcoal temperature:
- Increase Heat: Open the ventilation doors wider to allow more oxygen, increasing the charcoal temperature.
- Decrease Heat: Close the ventilation doors partially to restrict oxygen, lowering the charcoal temperature.

Close-up views highlighting the adjustable ventilation doors, ergonomic wooden handles, durable enamel finish, and the stainless steel cooking grate.
5.3 Grilling
- Preheat: Once charcoal is ready, allow the ceramic body to preheat for about 10-15 minutes to ensure even heat distribution.
- Place Food: Carefully place food on the stainless steel cooking grid.
- Use Grid Lifter: If you need to add more charcoal or adjust the existing coals during cooking, use the provided grid lifter to safely remove the hot cooking grid.

A hand demonstrating the use of the included grid lifter to safely remove or adjust the stainless steel cooking grate over hot coals.

The ONLYFIRE GRILLS GS306 charcoal grill in active use, cooking various meats and vegetables on its stainless steel grate.
6. Maintenance
6.1 Cleaning
- Cool Down: Always allow the grill to cool completely before cleaning.
- Remove Ashes: Once cool, carefully remove the charcoal plate and dispose of ashes responsibly.
- Clean Cooking Grid: The stainless steel cooking grid can be cleaned with a grill brush and warm soapy water. For stubborn residue, soak before scrubbing.
- Clean Ceramic Body: Wipe the ceramic body with a damp cloth. Avoid abrasive cleaners that could damage the enamel finish.
- Dry Thoroughly: Ensure all components are completely dry before storing to prevent rust or mildew.
6.2 Storage
Store the grill in a dry, covered area when not in use to protect it from weather elements and extend its lifespan.
7. Troubleshooting
- Uneven Heat: Ensure charcoal is evenly distributed on the charcoal plate. Adjust ventilation doors to balance airflow.
- Difficulty Lighting Charcoal: Use a proper charcoal starter. Ensure charcoal is dry. Open ventilation doors fully during ignition.
- Excessive Smoke: Ensure proper ventilation. Avoid adding too much charcoal at once. Excessive fat dripping onto coals can also cause smoke.
- Food Sticking to Grate: Ensure the cooking grid is clean and lightly oiled before placing food.
8. Specifications
| Feature | Detail |
|---|---|
| Model Name | TOP2206-GS306BKb |
| Dimensions | 20 x 8.8 x 6.3 inches |
| Item Weight | 22 Pounds |
| Material | Ceramic (body), Stainless Steel (grate, stand), Wood (handles) |
| Fuel Type | Charcoal |
| Special Feature | Superior Heat Retention, Grid Lifter |
| Cooking Surface Area | Approximately 144 Square Inches |
9. Warranty
This ONLYFIRE GRILLS product comes with a 1 Year Warranty. Please retain your proof of purchase for any warranty claims. For specific terms and conditions, refer to the warranty documentation included with your product or contact customer support.
10. Support
For further assistance, questions, or to report any issues with your ONLYFIRE GRILLS GS306 Charcoal BBQ Hibachi Grill, please contact the manufacturer's customer support. Contact information can typically be found on the product packaging or the official ONLYFIRE GRILLS website.