3 models in this file
Which Onlyfire Grill Accessory Upgrades Your Cookouts?
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Onlyfire is well known among outdoor cooking enthusiasts for modular attachments that expand the range of standard kettle cookers. Rather than investing in separate single-purpose units, grillers use these aftermarket tools to transform everyday charcoal cookers into low-and-slow barbecue pits, motorized roasters, and high-heat searing stations. For campers and tailgaters, packing targeted add-ons makes it possible to serve versatile camp meals without hauling multiple bulky cookers.
Across the current lineup of Onlyfire grill accessories, the models differ significantly in purpose, ranging from lightweight universal rotisserie baskets that slide into camp gear bags to dedicated vertical smoking sleeves and heavy ceramic fireboxes built for long sessions.
The line-up at a glance
Onlyfire Grill Accessories Compared
| Model | Primary Material | Grill Compatibility | Key Capability | Weight |
|---|---|---|---|---|
| onlyfire Stainless Steel Charcoal Firebox | Stainless steel and ceramic | Weber 22-inch Original and Master-Touch | Ceramic heat deflector for 225°F smoking | 28.8 pounds |
| onlyfire 6042 Stainless Steel Flat Spit | Stainless steel | Fits Hex and Square spit rods | Tool-less squeeze adjustment tabs | 16 ounces |
| onlyfire Stainless Steel BBQ Cooking Smoking | Stainless steel | Weber 22-inch kettles (not WSM or SnS) | 3-tier hanger with 24 hooks | 18.91 pounds |
| onlyfire 2-in-1 Cast Iron Grill Grate | Cast iron | Weber 22.5-inch kettle models | Removable 11.8-inch sear insert | 8 pounds |
| onlyfire Stainless Steel Universal Rotisserie Basket | Stainless steel | Fits Hex and Square spit rods | Fine mesh for small foods | 1.5 pounds |
| onlyfire Upgrade Stainless Steel Rotisserie Ring | Stainless steel | Weber 22.5-inch kettle models (not WSM or SnS) | 110V motor, 2 charcoal baskets, 10 drip pans | 12.12 pounds |
No. 1 of 3 · Onlyfire
onlyfire Stainless Steel Charcoal Firebox for Low-and-Slow Smoking
8.2/10 Our score
Best for: Campers roasting chicken wings and fries
What the listing says
- Dimensions Ring: 23" in diameter × 15.7" High.
- Compatible Models Fits for Weber 22" kettle grills such as Weber 22.5-Inch Original Kettle Premium Charcoal Grill, 22.5"…
- Stainless Steel Construction Made of durable stainless steel, provides better heat resistance and last longer.
- Openable Door Design The front door is designed for adding charcoal or woods easier while smoking, you can also…
- 3-tier Rib Hanger The rib hanger is with 24pcs hooks, which provides larger hanging capacity for you to hang…
Pros
- Fine-mesh food containment
- Dishwasher safe construction
- Weighs only 1.5 pounds
Cons
- Requires existing rotisserie rod
- Limited single-batch volume
Best for: Hosts smoking large batches of ribs
Pros
- 24-hook hanging capacity
- Front fueling access door
- Durable stainless steel
Cons
- Cooking grate not included
- Bulky vertical footprint
Best for: Low-and-slow barbecue pitmasters
Pros
- Ceramic heat retention
- Fuel-efficient combustion
- Removable deflectors
Cons
- Heavy 28.8-pound weight
- Fits specific kettle models
The onlyfire Stainless Steel Charcoal Firebox converts a standard kettle into an efficient convection cooker for low-and-slow smoking. Built with dual-layer stainless steel and a high-density ceramic core, it locks heat inside the base to prevent temperature drops. The ceramic heat deflector shields food from direct flame, helping pitmasters maintain a steady 225-degree smoking temperature while using thirty to fifty percent less charcoal. Sized at 20.5 inches by 5.7 inches, it fits 22-inch Weber Original and Master-Touch grills and supports six-hour barbecues or twelve-hour smoking runs without refueling.
For cooks who want brisket and pork shoulder results without purchasing a separate smoker like a kingsford smoker grill, this onlyfire charcoal firebox turns an existing kettle into a roaster and pizza oven. Removable heat deflectors optimize internal airflow and make clearing ash straightforward after long sessions.
This unit suits dedicated backyard cooks and base-camp chefs who want all-day thermal stability. Because it weighs 28.8 pounds, it requires dedicated vehicle space, making it less suited for ultralight travel than Onlyfire’s compact rotisserie accessories.
No. 2 of 3 · Onlyfire
onlyfire 6042 Stainless Steel Flat Spit for Balanced Roasting
8.4/10 Our score
Best for: Cooks grilling fish fillets and patties
What the listing says
- Made of great durable stainless steel construction, long lasting
- Dimentions 13.9"X 7.48" X 2.2", Length With 2 Tolders, Total 16.22".Can be used on most common grillers: Gas grill, charcoal grill, kamado grill.
- Multifunctional, great for roasting fish, hamburgers, sausages, chicken breast, pork chops, pork tenderloin, parsed ribs, shish-kebab, vegetables and beyond.
- Fits for 1/2" Hexagon, 3/8" Hexagon, 3/8" square & 5/16" square spit rods.
- Easy squeeze adjustment tabs allow for tool-less adjustment during preparation, during the cooking process, and when unloading the basket.
Pros
- Lightweight 16-ounce design
- Tool-less squeeze adjustment
- Fits multi-size spit rods
Cons
- Requires separate spit rod
- Not for loose chopped foods
The onlyfire 6042 Stainless Steel Flat Spit is a compact rotisserie basket made for securing delicate meats between two stainless steel surfaces. Measuring 13.9 inches by 7.48 inches by 2.2 inches, with a total length of 16.22 inches including side brackets, it mounts onto one-half-inch and three-eighths-inch hexagon rods, along with three-eighths-inch and five-sixteenths-inch square spit rods. A durable thumbscrew clamps the spit securely, making it compatible with gas, charcoal, and kamado grills.
The basket features tool-less squeeze adjustment tabs that let cooks change thickness settings during prep, cooking, or unloading. By clamping ingredients flat, this onlyfire rotisserie basket keeps fish fillets, burger patties, sausages, chicken breasts, pork chops, and vegetable skewers stable so they self-baste without breaking apart.
Weighing only 16 ounces, this flat spit basket is ideal for tailgaters and campers who need packable accessories for mobile grilling. It gives way to deeper tumbling baskets when cooking loose foods like french fries or wings that need continuous rolling rather than flat compression.
From the notebook
onlyfire Stainless Steel BBQ Cooking Smoking for Vertical Hanging
The onlyfire Stainless Steel BBQ Cooking Smoking attachment expands a standard kettle into a vertical barrel smoker. The system features a stainless steel ring measuring 23 inches in diameter by 15.7 inches tall, paired with an interior rib rack measuring 21.5 inches across and 5.4 inches high. It fits 22-inch Weber kettle models, including the Original Kettle, Original Kettle Premium, and Performer Premium. The listing states it does not fit the Weber Smokey Mountain Cooker or Slow ‘N Sear 22-inch kettles, and a horizontal cooking grate is not included.
Inside, a three-tier rib hanger equipped with 24 hooks allows users to suspend full racks of ribs, chicken, wings, and pork cuts vertically over the coals. An integrated front door with a handle allows cooks to add charcoal or wood chunks and monitor food progress without removing the kettle lid.
This onlyfire rib hanging system suits outdoor hosts cooking large meat volumes for tailgates and parties. At 18.91 pounds, it adds significant smoking height, remaining one of the most versatile onlyfire weber kettle accessories for cooks prioritizing hanging capacity over flat grate space.
No. 3 of 3 · Onlyfire
onlyfire 2-in-1 Cast Iron Grill Grate for High-Heat Searing
8.4/10 Our score
Best for: Steak lovers wanting high-heat sear marks
What the listing says
- Comes with 2 parts: the hole cooking grate is 21.5" in diameter , the inner sear…
- Made of high-quality cast iron to ensure long-lasting use, not only heat evenly and retain heat…
- Cast iron surface delivers professional searing, able to give prominent sear marks to meats/veggies.
- Apply for Weber 22.5-Inch Original Kettle Premium Charcoal Grill, 22.5" Original Kettle Charcoal Grill, 22.5" Performer…
- The grill accessory cast iron inner sear grate with raised side handles makes it easy to…
Pros
- Heavy-duty cast iron
- Removable center sear insert
- Raised handles for refueling
Cons
- Requires hand washing
- Heavier than wire grates
The onlyfire 2-in-1 Cast Iron Grill Grate upgrades standard wire grates with heavy cast iron engineered for superior heat retention. Sized to fit 22.5-inch Weber kettle grills like the Original Kettle and Performer Premium, it features a 21.5-inch outer grate and a removable 11.8-inch center sear insert. The heavy cast iron material absorbs heat efficiently to deliver prominent sear marks across steaks, chops, and vegetables.
The inner sear grate includes raised side handles, allowing cooks to lift out the center insert using grill tools to add charcoal during cooking without removing the outer grate. This dual-grate setup offers flexible coal management, whether running high-heat direct searing or shifting fuel for indirect roasting.
Outdoor cooks who prefer charcoal simplicity over automated pellet platforms with campchef pellet grill accessories appreciate the reliable heat retention of this onlyfire cast iron grill grate weber replacement. Weighing 8 pounds, it provides balanced durability for campsite cookouts, though it yields to rotisserie gear for whole birds.
From the notebook
onlyfire Stainless Steel Universal Rotisserie Basket for Small Bites
The onlyfire Stainless Steel Universal Rotisserie Basket provides a motorized tumbling solution for smaller foods that slip through regular grates. Constructed from durable stainless steel, this rectangular basket offers a capacity of 577.5 cubic inches. It attaches to one-half-inch and three-eighths-inch hexagon spit rods, as well as three-eighths-inch and five-sixteenths-inch square rods across gas and charcoal setups.
The fine-mesh design allows heat to circulate freely around tumbling contents while preventing food from dropping into the coals. Continuous 360-degree rotation bastes ingredients in their natural juices, making it ideal for preparing french fries, chicken wings, chili peppers, and diced vegetables. In addition, the listing confirms this stainless basket is dishwasher safe for simple post-meal cleanup.
Weighing just 1.5 pounds, this tumbling basket is an easy addition to tailgating and camper cook kits. It suits outdoor cooks looking to prepare sides and snacks with hands-off rotation, though it yields to flat spit baskets for delicate whole fish or burger patties.
From the notebook
onlyfire Upgrade Stainless Steel Rotisserie Ring for Whole Roasts
Best for: Pitmasters roasting whole chickens and roasts
Pros
- Includes 110V electric motor
- Comes with baskets and drip pans
- 20-pound motorized capacity
Cons
- Requires 110V electrical outlet
- Incompatible with WSM or SnS
The onlyfire Upgrade Stainless Steel Rotisserie Ring provides a complete motorized spit kit for roasting large meats on a kettle. Designed to fit 22.5-inch kettle grills, the stainless steel ring measures 23 inches by 23 inches by 7 inches. The manufacturer notes it does not fit the Slow ‘N Sear 22-inch kettle or Weber Smokey Mountain Cooker. Powered by an included 110-volt electric motor, the assembly holds up to 20 pounds, easily turning two chickens or large roasts simultaneously.
The package includes two charcoal baskets and ten disposable aluminum drip pans. The charcoal baskets position coals for indirect heat, while the drip pans catch falling grease to prevent flare-ups. The continuous rotation locks in juices and cooks meats evenly across the entire surface.
While backyard cooks often look at automated pellet accessories like traeger grill accessories, this onlyfire rotisserie ring kit weber 22 option gives charcoal purists automated roasting. At 12.12 pounds, it suits travelers with generator or outlet access, though off-grid campers without power will find manual grates more practical.
Before you choose
How to Choose the Right Onlyfire Grill Accessories
Selecting which onlyfire accessory to buy depends on your primary cooking style, travel space, and kettle compatibility. Onlyfire designs add-ons that expand standard grills into multifunctional outdoor cooking stations, but each accessory serves a distinct purpose. Tailgaters, campers, and backyard cooks should assess their specific cooking priorities before adding hardware to their setup.
Cooking style is the primary consideration. If your focus is long, low-temperature barbecue, the stainless steel charcoal firebox delivers exceptional thermal stability with its ceramic core, burning thirty to fifty percent less fuel. Pitmasters preparing large quantities of ribs or chicken will get more utility from the vertical smoking system with 24 hanging hooks. For everyday grilling, steak searing, and burger nights, the 2-in-1 cast iron grate provides superior contact heat retention and a convenient removable center for adding charcoal.
Portability and power availability matter greatly when cooking on the road. The motorized rotisserie ring kit turns whole birds and large roasts with ease, but its 110-volt motor requires an electrical hookup, inverter, or campsite power station. For lightweight travel, the 16-ounce flat spit basket and 1.5-pound fine-mesh rotisserie basket pack easily into gear bins and fit existing spit rods. The heavy 28.8-pound ceramic firebox, by contrast, is best reserved for home patios or semi-permanent base camps where weight is not an issue.
Finally, verify your grill dimensions before selecting an add-on. While universal rotisserie baskets fit various hexagon and square spit rods on gas, kamado, or charcoal cookers, kettle rings and inserts have exact size requirements. The firebox, cast iron grate, vertical smoker, and rotisserie ring are engineered for 22-inch and 22.5-inch kettle grills like the Weber Original Kettle and Master-Touch. Note that the rotisserie ring and vertical smoker do not fit the Weber Smokey Mountain Cooker or 22-inch Slow ‘N Sear models.
Questions people ask
FAQ
Which Onlyfire grill accessories fit a 22-inch Weber kettle?
The stainless steel charcoal firebox, 2-in-1 cast iron grate, vertical cooking smoking system, and upgrade rotisserie ring kit are designed for standard 22-inch and 22.5-inch kettle grills, such as the Weber Original Kettle and Performer models. Note that the vertical smoker and rotisserie ring kit do not fit the Weber Smokey Mountain Cooker or Slow ‘N Sear 22-inch grills.
What spit rod shapes fit Onlyfire rotisserie baskets?
Both the flat spit basket and the universal fine-mesh basket accommodate one-half-inch and three-eighths-inch hexagon spit rods, as well as three-eighths-inch and five-sixteenths-inch square rods. An integrated thumbscrew clamps the sleeve securely to the rod to ensure stable rotation on gas, charcoal, or kamado rotisseries.
How does the ceramic firebox help save charcoal?
The onlyfire charcoal firebox combines dual-layer stainless steel with a high-density ceramic heat deflector. The ceramic core absorbs and radiates heat evenly, eliminating temperature fluctuations and allowing charcoal to burn slower and more completely. This design maintains a stable 225-degree smoking temperature while reducing charcoal use by thirty to fifty percent.
How do you add charcoal when using the 2-in-1 cast iron grate?
The 2-in-1 cast iron grate features an 11.8-inch inner sear insert with raised side handles. When your firebed needs additional fuel, you can lift out this central insert using grill tools and drop charcoal or wood chunks directly into the coals without removing the full 21.5-inch outer grate.
Are Onlyfire rotisserie baskets dishwasher safe?
The listing specifically states that the stainless steel universal rotisserie basket is dishwasher safe, allowing for quick cleanup after roasting wings or vegetables. The flat spit basket is also stainless steel and cleans up easily with soapy water, while cast iron grates require hand washing, drying, and seasoning.
Prices, specifications and the feature lines above are read from the product listing and can change without notice. Scores are out of 10, based on listed specifications and buyer feedback; nothing on this page is written from handling the product.
