Uniflasy BBQ Whirlpool Charcoal Funnel Insert for 22"+ Kettle Grills — 304 Stainless Steel Sear Zone & Convection

The Uniflasy BBQ Whirlpool is a 304 stainless-steel charcoal funnel insert designed to create a concentrated high-heat sear zone and improved convection for 22" and larger kettle-style charcoal grills.

Built to fit Weber Kettle 22, Weber Smokey Mountain (XL), Big Green Egg XL, Kamado and other 22"+ kettle grills, this stainless-steel whirlpool funnels charcoal into an intense central burn while preserving surrounding indirect heat for smoking and even cooking. It’s a simple accessory that converts ordinary charcoal layouts into a versatile heat source for searing, hot-and-fast grilling, or extended low-and-slow sessions with less fuel.

How does the Uniflasy Whirlpool change my grill’s heat profile?

The funnel concentrates burning charcoal into a compact core, producing a much hotter radiant sear zone in the center while maintaining convection around it. That lets you sear directly over extreme heat and move food outward for gentler cooking.

• Creates a concentrated 600°F+ sear zone when vents are open and charcoal is half-filled.
• Maintains indirect convection heat for smoking and slow cooking around the center.
• Reduces the charcoal area, boosting peak temperatures without adding more fuel.

Will this fit my grill and what are the exact dimensions?

Uniflasy engineered the whirlpool to nest inside most 22" kettles and larger dome-style grills; always verify your grill’s cooking grate diameter before buying. The part has precise measurements so you can confirm fitment quickly.

• Bottom diameter: 11.97" — sits on the lower grate area.
• Top diameter: 8.10" — opens to a focused burn chamber.
• Height: 4.72" and thickness: 19GA (0.04").

What material is it made from and how durable is it?

Constructed from 304 stainless steel, the whirlpool resists oxidation and corrosion and tolerates high grilling temperatures. Reinforced rivets and robust fabrication help it withstand repeated heat cycles and regular use.

• 304 stainless steel: corrosion-resistant and non-magnetic.
• Reinforced rivets increase long-term durability under high heat.
• Smooth surface simplifies cleaning—wash with warm soapy water.

How do I use it for different cooking styles—searing, grilling, or smoking?

Using the whirlpool is flexible: half-fill the funnel for blazing sears, or use fewer coals with vents adjusted for low-and-slow smoking. Position food over the center for direct searing, or farther out for medium heat and indirect smoking.

• Hot & fast: half-fill charcoal, open vents fully, sear steaks and wings.
• Low & slow: use fewer coals, partly close vents, and place food away from the center.
• Radiant grilling: take advantage of concentrated heat for crispy skins and char marks.

Who is this for: Grillers who own a 22" or larger kettle-style smoker or kamado and want a compact, durable accessory to boost peak temperatures, save fuel, and add versatility. It’s ideal for backyard cooks who want restaurant-style sear capability without a dedicated sear burner, and for pitmasters who want an easy way to switch between high-heat grilling and controlled smoking using the same charcoal load.