onlyfire Rotisserie & Pizza Combo Kit for 18" Kettle Grills — Stainless Steel Ring, 13" Cordierite Stone

The onlyfire Multi-Purpose Stainless Steel Rotisserie and Pizza Combo Kit converts an 18" kettle grill into a rotisserie oven and pizza stone station for even roasting and crisp artisan-style pizza at home.

This all-in-one kit is designed for 18" kettle-style grills (like many Weber models) and combines a stainless-steel rotisserie ring and motor with a 13" cordierite pizza stone, peel and supporting hardware. It expands the ways you can use a standard kettle grill—letting you rotisserie up to two birds at once, or slide a pizza stone into the same platform for smoky, high-heat baking. Components are built to resist heat, provide stable rotation, and make swapping between roasting and baking straightforward.

How does the rotisserie perform for roasting whole chickens and roasts?

The rotisserie ring and included motor deliver steady, slow rotation so meats cook evenly without frequent turning. The stainless-steel construction resists warping at grilling temperatures and the detachable front baffle lets you control heat and airflow while minimizing heat loss.

• Includes 110V electric motor for consistent rotation.
• Stainless-steel ring supports skewers for one or two chickens.
• Detachable front baffle to conserve heat when needed.
• Four extra support chips to stabilize your cooking grate.

Can this kit handle pizza and baking at high temperatures?

Yes—the kit ships with a 13" round cordierite stone made for direct high-heat baking. Cordierite stores and radiates heat evenly, producing a crispy crust and reducing hot spots common with thin metal pans.

• 13" cordierite stone for even heat retention and crisp bottoms.
• Baking peel included for safe transfer of pizza and baked goods.
• Stone sized to fit inside the rotisserie ring footprint for dual use.

What accessories are included and how do they improve setup?

The kit arrives ready to use with the main ring, motorized rotisserie kit, pizza stone and peel, plus support chips that make seating the grill grate simple and stable. The extra support brackets give flexibility in how you position the grate or stone depending on whether you’re roasting or baking.

• Rotisserie ring and rotisserie kit with 110V motor included in package.
• Four support chips for raising or stabilizing the cooking grate.
• Baking peel for safe loading and unloading of the cordierite stone.
• Extra support brackets to adapt grate height and placement.

Is this compatible with my kettle grill and are there any exceptions?

The product is engineered for 18" kettle grills and works with many popular kettle-style models, but it is not compatible with Weber Smokey Mountain cookers. Confirm your grill is an 18" kettle-style model before purchasing to ensure proper fit.

• Designed for 18" diameter kettle grills and similar models.
• Not compatible with Weber Smokey Mountain cookers—do not buy for that cooker.
• Patent-protected design under U.S. Patent No.10,405,699.

Who is this for: Home cooks and backyard hosts who want to expand their 18" kettle grill’s capabilities—whether you enjoy slow-rotisserie poultry, weekend roasts, or wood-fired-style pizzas. It’s especially well suited to people hosting small gatherings, cooking for families, or anyone who wants a multipurpose accessory that converts a standard kettle grill into a more versatile outdoor oven.