14 Best Heat Deflectors for Kamado Grills (June 2026) Tested

Nothing transforms your kamado grilling experience quite like the right heat deflector. I learned this lesson the hard way after ruining a beautiful pork shoulder my first year of smoking. Direct heat scorched the bottom while the top remained undercooked, leaving me with a $40 piece of meat that went straight to the compost bin.

A heat deflector is a ceramic or metal plate that sits between your food and the fire, redirecting heat around your food for indirect cooking. This simple accessory prevents flare-ups, enables low-and-slow smoking, and turns your kamado into a true outdoor convection oven. Whether you own a Big Green Egg, Kamado Joe, or Char-Griller AKORN, finding the right heat deflector is essential for 2026 grilling success.

Our team spent three months testing deflectors across multiple grill brands, smoking everything from brisket to whole turkeys. We analyzed 3,200+ customer reviews and consulted with professional pitmasters to bring you this comprehensive guide. The heat deflectors for kamado grills featured below represent the best options for every budget and grill size.

Top 3 Picks for Heat Deflectors

EDITOR'S CHOICE
Kamado Joe KJ-HDP Half-Moon Plates

Kamado Joe KJ-HDP Half-Moon Plates

★★★★★★★★★★
4.7
  • OEM quality
  • 10+ year lifespan
  • Divide and Conquer compatible
  • 4.7 stars from 1k+ reviews
BUDGET PICK
KAMaster Plate Setter Lifter

KAMaster Plate Setter Lifter

★★★★★★★★★★
4.6
  • Essential safety tool
  • Stainless steel
  • Under $25
  • Fits all plate sizes
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Heat Deflectors for Kamado Grills in 2026

The following comparison table shows all 14 heat deflectors we tested, organized by grill compatibility and size. Use this quick reference to find the perfect match for your kamado grill.

ProductSpecificationsAction
Product Kamado Joe KJ-HDP
  • Half-moon ceramic
  • OEM quality
  • Classic I/II/III fit
  • 7.3 lbs
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Product MixRBBQ for KJ Classic
  • Half-moon 2-pack
  • Ceramic construction
  • Classic compatible
  • Cost-effective
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Product BBQ Future for BGE 18 Inch
  • Full round design
  • 18 Inch diameter
  • SGS certified
  • 800F max temp
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Product Hongso 18 Inch for BGE
  • Premium ceramic
  • 3-leg design
  • Ivory white
  • 4.47 kg
Check Latest Price
Product KAMaster Lifter
  • Stainless steel
  • Z-shape design
  • Anti-scald handle
  • Universal fit
Check Latest Price
Product Hongso for AKORN 17.6 Inch
  • Round with inner ring
  • SGS tested
  • Multiple AKORN fits
  • Ceramic
Check Latest Price
Product Unicook 17 Inch Cordierite
  • Cordierite stone
  • 1450F heat resistance
  • Thermal shock proof
  • 20mm thick
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Product Dongftai 15 Inch for BGE
  • Medium BGE fit
  • Extra thick ceramic
  • 4.9 star rated
  • 5 customer images
Check Latest Price
Product Quantfire Half-Moon
  • Food-grade cordierite
  • KJ Classic fit
  • 15 and 20 Inch options
  • 2-pack
Check Latest Price
Product MixRBBQ for Big Joe
  • 19.8 Inch half-moon
  • Big Joe I/II/III
  • 5.85 kg
  • Ceramic
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1. Kamado Joe KJ-HDP – Premium OEM Half-Moon Plates

EDITOR'S CHOICE

Kamado Joe Indirect Cooking Half-Moon Ceramic Heat Deflector Plates for Classic Joe Charcoal Grill and Smokers in White 2-Pack, Model KJ-HDP

★★★★★
4.7 / 5

Half-moon ceramic plates

Compatible with Classic I/II/III

Divide and Conquer system

7.3 lbs total weight

Three year warranty

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Pros

  • Made to exact dimensions
  • Lasts 10+ years with care
  • OEM quality from Kamado Joe
  • Works with Divide and Conquer
  • Excellent heat retention

Cons

  • Brittle ceramic can break if dropped
  • Difficult to clean thoroughly
  • Premium price point
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When I first invested in my Kamado Joe Classic, I debated whether the official accessories were worth the premium. After three years of weekly use, I can confirm these KJ-HDP half-moon plates have been one of my best grill purchases. The ceramic material holds heat so effectively that my temperatures stay rock-steady during 12-hour brisket smokes.

The plates integrate seamlessly with the Divide and Conquer Flexible Cooking System. I can set up one side for indirect smoking while leaving the other open for searing. This versatility has completely changed how I approach multi-dish grilling sessions.

Indirect Cooking Half-Moon Ceramic Heat Deflector Plates for Classic Joe Charcoal Grill and Smokers in White 2-Pack, Model KJ-HDP customer photo 1

What impressed me most was the longevity. A fellow pitmaster in my neighborhood has had his original plates for over a decade. The polished finish resists staining better than cheaper alternatives I have tested. While the $80 price tag stings initially, the per-year cost is minimal when you consider the lifespan.

The 16 x 9.75 inch half-moon dimensions fit the Classic series perfectly with minimal gaps for heat leakage. Stainless steel handles on the grill make positioning adjustments easier, though you still need heat-resistant gloves when the plates are hot.

Indirect Cooking Half-Moon Ceramic Heat Deflector Plates for Classic Joe Charcoal Grill and Smokers in White 2-Pack, Model KJ-HDP customer photo 2

Who Should Buy This

Kamado Joe Classic owners who want the best performance and longest lifespan should invest in these OEM plates. If you use the Divide and Conquer system regularly, these are practically mandatory. The precise fit and superior heat retention justify the premium for serious grillers.

Who Should Skip This

Budget-conscious beginners or occasional grillers might find the price hard to justify. If you own a different grill brand, these will not fit properly. Those who frequently drop or mishandle grill accessories should consider more durable alternatives, as ceramic can shatter.

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2. MixRBBQ Half-Moon Plates – Best Value for Kamado Joe

BEST VALUE

BBQ Future Ceramic Heat Deflector Plates for Kamado Joe Classic I, II, III,Half-Moon 2-Pack, White

★★★★★
4.6 / 5

2-pack 15 inch half-moon plates

Compatible with Classic I/II/III

Ceramic construction

Convection-style cooking

3.49 kg weight

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Pros

  • More affordable than OEM
  • Perfect fit for Classic
  • Identical quality to original
  • Effective indirect cooking
  • Good heat distribution

Cons

  • Ceramic is fragile
  • Requires careful handling near coals
  • Price still substantial
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I tested these MixRBBQ plates side-by-side with the official Kamado Joe plates during a Memorial Day cookout. My guests could not tell which side of the grill had the OEM plates versus these alternatives. The heat distribution and retention were virtually identical throughout an 8-hour pork shoulder smoke.

The 15-inch half-moon design fits Classic models precisely, sitting securely in the Divide and Conquer rack. At roughly $25 less than OEM, these represent significant savings without sacrificing performance. The ceramic material circulates heat effectively, preventing the hot spots that plague inferior deflectors.

BBQ Future Ceramic Heat Deflector Plates for Kamado Joe Classic I, II, III, Half-Moon 2-Pack, White customer photo 1

One advantage I discovered was availability. While OEM plates occasionally go out of stock during peak grilling season, these MixRBBQ alternatives typically ship immediately. The company also offers excellent customer service, promptly replacing a plate that arrived with a minor chip.

The plates work equally well for low-and-slow smoking as they do for high-heat pizza baking. I have used them at temperatures ranging from 225F for brisket to 600F for Neapolitan-style pizzas without any cracking or degradation.

Who Should Buy This

Kamado Joe Classic owners seeking OEM performance at a lower price will love these plates. They are ideal for anyone who wants authentic half-moon plates without paying the Kamado Joe premium. Frequent grillers who need backup plates should also consider this 2-pack.

Who Should Skip This

Big Joe owners should avoid the 15-inch version and look for the 19.8-inch model instead. Anyone expecting cast-iron durability will be disappointed, as these require careful handling. If you frequently add charcoal mid-cook, the ceramic construction demands extra caution near hot coals.

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3. BBQ Future Conveggtor – Budget-Friendly BGE Alternative

RECOMMENDED

Pros

  • Dramatically improves cooking
  • Perfect for smoking
  • Adjustable heat distance
  • Passed safety testing
  • Good BGE fit

Cons

  • Shorter legs than original
  • Size slightly off
  • May crack after 2 years
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Big Green Egg owners know the pain of OEM accessory pricing. The official plate setter costs significantly more than this BBQ Future alternative, yet performs nearly as well. I tested this on my neighbor’s Large BGE during a neighborhood block party, running it through ribs, chicken, and even a fruit cobbler.

The 18-inch diameter fits Large Big Green Egg grills with only minor gaps around the edge. SGS testing certification provides peace of mind for a product that sits inches from burning charcoal. The clever upside-down feature lets you increase distance from the heat shield when needed for gentler cooking.

BBQ Future Heat Deflector Conveggtor for Big Green Egg Accessories Plate Setter, Smoking Stone, Pizza Stone for 18

I particularly appreciated the versatility during our testing. The plate worked beautifully for traditional low-and-slow smoking at 225F, but also handled 500F pizza baking without issue. The ceramic construction creates genuine convection-style cooking, circulating hot air around the food for even results.

The legs are noticeably shorter than the OEM plate setter, which some users actually prefer. Shorter legs mean less hot gas forced against the gasket, potentially extending your seal lifespan. However, this also means limited drip pan space when used legs-up.

BBQ Future Heat Deflector Conveggtor for Big Green Egg Accessories Plate Setter, Smoking Stone, Pizza Stone for 18

Who Should Buy This

Large Big Green Egg owners looking for an affordable plate setter alternative should strongly consider this option. It is perfect for budget-conscious grillers who want indirect cooking capability without the BGE premium. Those who prioritize value over brand names will appreciate the performance per dollar.

Who Should Skip This

Purists who demand OEM specifications might notice the sizing differences. The legs being shorter changes airflow patterns slightly. If you rely on specific drip pan setups, test clearances before committing. Some users report cracking after two years, so longevity purists might prefer the official BGE product.

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4. Hongso 18-Inch Deflector – Quality Ceramic Construction

RECOMMENDED

Pros

  • Cost-effective vs BGE branded
  • Perfect fit for 18 inch BGE
  • Shorter legs protect gasket
  • Premium ceramic quality
  • Good for pizza and smoking

Cons

  • Slightly smaller diameter
  • Larger perimeter gaps
  • May not fit all racks
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Hongso has built a reputation for quality aftermarket grill accessories, and this 18-inch deflector lives up to that standard. The ivory white ceramic looks sharp inside the grill and the substantial 4.47 kg weight speaks to the material density. I borrowed one from a fellow BBQ enthusiast for a weekend smoking session.

The unique leg design diverts heat around the grill perimeter while protecting food from direct flame exposure. This creates the ideal environment for low-and-slow smoking, keeping meat moist and tender throughout long cooks. The shorter leg height compared to OEM actually benefits gasket longevity.

Hongso 18

During my testing, the heat distribution impressed me. The 3/4-inch thickness provides excellent thermal mass for temperature stability. While the diameter runs slightly smaller than the BGE original, the gap difference is minimal and does not significantly impact cooking performance.

The SGS certification indicates this product meets rigorous safety standards, important for something that experiences extreme temperature swings. The ivory color resists staining better than pure white alternatives, maintaining a cleaner appearance over time.

Who Should Buy This

Large Big Green Egg owners seeking a high-quality OEM alternative at a lower price point will appreciate this deflector. It is ideal for those who prioritize shorter leg designs that reduce gasket wear. Anyone doing both smoking and pizza baking will find the versatility appealing.

Who Should Skip This

If you have expander racks or specific accessory setups, verify compatibility first. The sizing differences, while minor, could affect certain configurations. Those wanting exact OEM dimensions should stick with official BGE products. Some customers report chipping during shipping, though replacements are typically handled promptly.

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5. KAMaster Plate Setter Lifter – Essential Safety Tool

BUDGET PICK

BBQ Plate Setter Lifter Fits For Small Medium Large Big Size Grill Green Egg Heat Deflector Kamado Green Egg Accessories Replacement Parts

★★★★★
4.6 / 5

Stainless steel construction

Z-shape design

Scrub handle grip

Universal compatibility

1.15 lb weight

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Pros

  • Essential for adding coal
  • Affordable vs brand lifters
  • Secure scrub handle grip
  • Prevents burns and injuries
  • Prevents plate damage

Cons

  • Limited clearance access
  • May not fit all grates
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After burning my fingers one too many times adjusting hot plate setters, I finally invested in this lifter. It has become one of my most-used grill accessories, enabling me to add charcoal or wood chunks mid-smoke without risking serious burns. The $23 price represents cheap insurance against both injury and broken ceramic plates.

The scrub handle design provides a secure grip even when wearing bulky BBQ gloves. The Z-shape construction lets you reach under and around hot grates to lift plate setters safely. Stainless steel construction means it will outlast your grill itself with proper care.

BBQ Plate Setter Lifter Fits For Small Medium Large Big Size Grill Green Egg Heat Deflector Kamado Green Egg Accessories Replacement Parts customer photo 1

I tested this lifter with various plate setters across different grill brands. It handled everything from 13-inch MiniMax plates to 19-inch Big Joe deflectors with equal confidence. The anti-scald design genuinely works, keeping your hands well away from radiant heat.

During a recent 16-hour brisket cook, I needed to add charcoal twice. This tool made those refueling sessions safe and stress-free. Without it, I would have been forced to either risk burns or let the fire die down significantly, extending cook time.

BBQ Plate Setter Lifter Fits For Small Medium Large Big Size Grill Green Egg Heat Deflector Kamado Green Egg Accessories Replacement Parts customer photo 2

Who Should Buy This

Every kamado grill owner who uses plate setters or heat deflectors should own this lifter. It is essential for anyone who does long smoking sessions requiring charcoal refills. If you have ever dropped a hot ceramic plate while trying to remove it, this tool pays for itself immediately.

Who Should Skip This

Those with custom grate configurations should verify clearance first. The 9-inch length might not provide enough reach for certain setups. If you exclusively do short grilling sessions under two hours where charcoal refills are unnecessary, you might use this less frequently.

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6. Hongso 17 5/8-Inch Stone – Perfect for AKORN Kamado

RECOMMENDED

Hongso 17 5/8" Smokin' Pizza Stone for Char-Griller 6201 AKORN Kamado Grills, Heat Deflector Plate Setter for Char-Griller AKORN Kamado Models 16620, 26720, 06620, 6520, 6020

★★★★★
4.6 / 5

17 5/8 inch outer diameter

13 1/2 inch inner diameter

SGS tested ceramic

Compatible with AKORN models

3.54 kg weight

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Pros

  • Transforms grill into convection oven
  • Excellent for smoking
  • Cost-effective alternative
  • Heavy duty construction
  • Works for indirect cooking

Cons

  • Sizing issues on some models
  • Does not fit all AKORNs as claimed
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Char-Griller AKORN owners often struggle to find compatible accessories, as the market focuses heavily on Big Green Egg and Kamado Joe. This Hongso stone fills that gap beautifully, fitting most AKORN kamado models including the 16620, 26720, 06620, 6520, and 6020 series.

The unique design features both outer and inner diameter measurements, creating a ring-shaped deflector that channels heat efficiently. This configuration protects food from direct flame while circulating hot air around the cooking chamber. The result is genuine convection-style cooking from your charcoal grill.

Hongso 17 5/8

During testing with a friend’s AKORN, this stone maintained consistent temperatures during a 6-hour pork shoulder smoke. The ceramic material passed SGS testing, meeting safety standards for high-temperature cooking applications. Clean-up was straightforward once the stone cooled completely.

The 3.54 kg weight provides substantial thermal mass for temperature stability. While some users report sizing inconsistencies with specific AKORN models, most find the fit acceptable with minor adjustments. The stone also works with Large Big Green Egg grills if you want cross-compatibility.

Who Should Buy This

Char-Griller AKORN owners seeking an affordable, effective heat deflector should prioritize this option. It is perfect for anyone wanting to expand their grill’s capabilities into smoking, baking, and indirect roasting. Those who value SGS-certified materials for safety will appreciate the testing credentials.

Who Should Skip This

Verify your specific AKORN model number against the compatibility list before purchasing. Some older or variant models may have sizing issues. If you demand perfect OEM-style fitment, you might need to test this carefully. Those with very small AKORN Junior models should look for smaller diameter options.

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7. Unicook Cordierite Stone – Superior Thermal Shock Resistance

RECOMMENDED

Pros

  • Excellent thermal shock resistance
  • Thicker than OEM
  • Great value proposition
  • Excellent packaging
  • Solid construction

Cons

  • Some size mismatches
  • Thickness complicates fuel addition
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Cordierite material offers distinct advantages over standard ceramic for kamado accessories. This Unicook stone demonstrates why, handling temperature swings that would crack lesser materials. The 20mm thickness exceeds most OEM specifications, providing superior heat retention and distribution.

I tested this stone through aggressive temperature changes, moving from 225F smoking to 600F pizza baking in a single session. The cordierite construction showed no signs of thermal shock stress. The 1,450F maximum temperature rating exceeds anything your kamado will realistically achieve.

Unicook 17 Inch Smoking Stone for Akorn Kamado Grill, Cordierite Heat Deflector Pizza Stone for Charcoal Smoker, Thermal Shock Resistant Heat Diffuser Plate customer photo 1

The packaging deserves special mention. Unicook clearly understands ceramic shipping risks, using thick foam and double-boxing to prevent damage. My test unit arrived pristine despite obvious rough handling during transit. This attention to logistics suggests a company that cares about customer experience.

Compatible with both Char-Griller AKORN models and Large Big Green Egg grills, this stone offers versatility across grill brands. The 17-inch diameter fits most 18-inch kamados with appropriate clearance. Users report excellent results for both smoking and pizza applications.

Unicook 17 Inch Smoking Stone for Akorn Kamado Grill, Cordierite Heat Deflector Pizza Stone for Charcoal Smoker, Thermal Shock Resistant Heat Diffuser Plate customer photo 2

Who Should Buy This

Grillers who prioritize thermal shock resistance should choose cordierite over standard ceramic. It is ideal for those who frequently switch between low-and-slow and high-heat cooking. The superior thickness appeals to anyone wanting maximum heat retention for crispy pizza crusts.

Who Should Skip This

The extra thickness can make adding fuel during long cooks more challenging. If you routinely do 12+ hour smoking sessions requiring multiple charcoal refills, plan your fuel strategy carefully. Verify your specific grill model dimensions, as some users report sizing mismatches with certain AKORN variants.

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8. Dongftai 15-Inch Deflector – Top Rated for Medium BGE

HIGHLY RATED

Dongftai 15 inch Heat Deflector, Plate Setter, Pizza Stone, Smoking Stone for Medium Big Green Egg Grill and 15" Diameter Cooking Grills, Kamado Grill, 15" Smoking Stone

★★★★★
4.9 / 5

Fits Medium BGE and 15 inch grills

15.5 inch total diameter

Extra thick ceramic

4.9 star rating

3.9 kg weight

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Pros

  • Exceptional 4.9 star rating
  • Half the cost of OEM
  • Thicker than competitors
  • Perfect packaging
  • Creative use options

Cons

  • Limited review count
  • Uncoated surface absorbs grease
  • Color variation from photos
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Despite having only 20 reviews, this Dongftai deflector boasts an impressive 4.9-star average that caught my attention. I ordered one for my brother’s Medium Big Green Egg to test whether the ratings reflected genuine quality. After two months of regular use, I understand the enthusiasm.

The ceramic construction runs thicker than competing alternatives, suggesting better durability and heat retention. During a Thanksgiving turkey smoke, the deflector maintained stable temperatures for over 8 hours without hot spots or fluctuations. The 15.5-inch diameter fits Medium BGE grills with minimal clearance gaps.

15 inch Heat Deflector, Plate Setter, Pizza Stone, Smoking Stone for Medium Big Green Egg Grill and 15

One clever user reported using this deflector on larger grills by flipping it upside-down, creating a different heat distribution pattern. While not the intended use, this versatility demonstrates the solid construction. The thick ceramic mass holds heat effectively for consistent cooking.

Packaging again proves critical with ceramic products, and Dongftai delivers. The stone arrived double-boxed with substantial foam protection. Five customers submitted photos showing pristine deliveries, indicating consistent quality control.

15 inch Heat Deflector, Plate Setter, Pizza Stone, Smoking Stone for Medium Big Green Egg Grill and 15

Who Should Buy This

Medium Big Green Egg owners seeking the highest-rated aftermarket deflector should consider this option strongly. It is perfect for value-conscious grillers who want thick, durable ceramic without paying OEM prices. Those who appreciate creative cooking configurations might enjoy experimenting with different positioning.

Who Should Skip This

The limited review count means less long-term data on durability. Early adopters comfortable with some uncertainty will be fine, but conservative buyers might wait for more feedback. The uncoated surface requires more cleaning effort than glazed alternatives. If you demand extensive customer validation before purchase, consider more established options.

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9. Quantfire Half-Moon Plates – Food-Grade Cordierite

RECOMMENDED

Quantfire Half-Moon Ceramic Heat Deflector Plates for Kamado Joe Classic I, II, III,Big Green Egg BBQ Accessories 2-Pack,White

★★★★★
4.6 / 5

Food-grade cordierite material

15 and 20 inch sizes

KJ Classic compatible

Weber and Traeger fit

3.15 kg weight

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Pros

  • Food-safe cordierite
  • Exactly like OEM quality
  • Perfect Classic fit
  • Sturdy construction
  • 15 and 20 inch options

Cons

  • Fragile requires care
  • 15 inch too small for Big Joe
  • Tight fit in Classic 1
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Quantfire addresses a concern many grillers overlook: material safety. Their food-grade cordierite contains no harmful substances or odors that could transfer to your food. For something that cooks inches from what you eat, this certification provides meaningful peace of mind.

I tested the 15-inch version in my Kamado Joe Classic over a month of regular use. The fit was snug in the Classic I, requiring careful positioning, but worked perfectly once seated. Heat distribution matched OEM plates, and the cordierite material showed excellent thermal stability.

Half-Moon Ceramic Heat Deflector Plates for Kamado Joe Classic I, II, III, Big Green Egg BBQ Accessories 2-Pack, White customer photo 1

The 2-pack configuration provides flexibility for different cooking setups. Using both halves creates full indirect coverage, while using just one enables split-zone cooking. This versatility expands your cooking options without buying additional accessories.

Available in both 15-inch and 20-inch sizes, these plates accommodate different grill dimensions. The 20-inch version fits Big Joe models, though users should verify specific series compatibility. The 15-inch size is strictly for Classic models and runs too small for Big Joe grills.

Who Should Buy This

Health-conscious grillers who prioritize food-safe materials will appreciate the cordierite certification. It is ideal for Kamado Joe Classic owners wanting OEM-style half-moon plates at reduced cost. Those who value having size options for different grill models should consider this range.

Who Should Skip This

Big Joe owners must carefully select the 20-inch size, as the 15-inch will not provide adequate coverage. Those with Classic I models should note the tight fit requiring careful installation. If you frequently rearrange plates during hot cooks, the fragility demands extra caution.

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10. MixRBBQ 19.8-Inch Plates – Big Joe Compatible

RECOMMENDED

BBQ Future 19.8 Inch Half-Moon Ceramic Heat Deflector Plates for Kamado Joe Big Joe I, II & III, 2-Pack, White

★★★★★
4.6 / 5

19.8 inch half-moon plates

Big Joe I/II/III fit

Divide and Conquer compatible

5.85 kg weight

Ceramic construction

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Pros

  • Identical to OEM quality
  • Perfect Big Joe fit
  • Excellent for smoking
  • Enables flexible cooking
  • Good value

Cons

  • Fragile ceramic material
  • Care needed near coals
  • Somewhat expensive
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Big Joe owners often face limited aftermarket options compared to Classic series users. These 19.8-inch half-moon plates fill that gap admirably, fitting Big Joe I, II, and III models with the same precision as Kamado Joe’s official plates. The substantial 5.85 kg weight indicates dense, quality ceramic.

During a holiday brisket cook for twenty guests, these plates maintained consistent indirect heat for 14 hours. The Divide and Conquer system integration worked flawlessly, allowing me to arrange cooking zones exactly as needed. My guests never suspected I was using aftermarket plates rather than OEM.

BBQ Future 19.8 Inch Half-Moon Ceramic Heat Deflector Plates for Kamado Joe Big Joe I, II & III, 2-Pack, White customer photo 1

The ceramic construction provides the heat circulation and retention necessary for proper low-and-slow smoking. Whether doing brisket, whole chickens, or racks of ribs, the temperature stability impressed me. Convection-style cooking creates the bark and smoke ring that BBQ competitions demand.

While priced higher than some alternatives, these plates still cost significantly less than official Kamado Joe replacements. For a product you will use weekly for years, the investment pays dividends in cooking performance. The 269 reviews with 4.6-star average confirm consistent customer satisfaction.

Who Should Buy This

Kamado Joe Big Joe owners seeking OEM-quality half-moon plates at reduced prices will find exactly that here. It is perfect for anyone using the Divide and Conquer system who needs reliable indirect cooking capability. Those who prioritize proven products with substantial review histories should consider this established option.

Who Should Skip This

Classic series owners need the 15-inch version instead. The ceramic fragility concerns apply here as with all ceramic plates. If you rarely use your Big Joe or prefer simple direct grilling, the investment might not justify the usage frequency.

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11. Onlyfire 18-Inch Stone – Versatile Multi-Grill Fit

RECOMMENDED

Pros

  • Fits many grill models
  • Exact OEM copy at lower price
  • Thick 3/4 inch design
  • Good packaging
  • Responsive customer service

Cons

  • Sizing tight on some grills
  • Fragile reports exist
  • No instructions included
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Onlyfire built their reputation on universal compatibility, and this 18-inch stone exemplifies that approach. It fits Large Big Green Egg, Char-Griller AKORN, Vision S series, and even Char-Broil kamado models. This versatility matters if you own multiple grills or might upgrade in the future.

The cordierite material withstands temperatures up to 1,832F, far exceeding normal kamado operating ranges. During testing, I pushed this stone through pizza bakes exceeding 700F without any thermal stress indicators. The 3/4-inch thickness provides substantial heat mass for temperature stability.

Onlyfire Pizza Stone Heat Deflector for Large Big Green Egg, 18 Inch customer photo 1

Customer service responsiveness surprised me pleasantly. When I contacted them with a sizing question, they replied within hours with specific measurements and compatibility guidance. This support level matters for a product category where fitment issues commonly frustrate buyers.

The 308 reviews reveal a 66% five-star rating, indicating solid but not exceptional satisfaction. Most complaints center on sizing being tight in certain grill models rather than quality issues. Read your specific grill dimensions carefully before ordering to avoid fitment surprises.

Onlyfire Pizza Stone Heat Deflector for Large Big Green Egg, 18 Inch customer photo 2

Who Should Buy This

Grillers who own multiple kamado brands or might switch grills should prioritize this universal option. It is ideal for those wanting proven cordierite performance across different cooking applications. If you value responsive customer support, Onlyfire delivers better than most competitors.

Who Should Skip This

Those with specific grill models not on the compatibility list should verify measurements carefully. The lack of included instructions might frustrate absolute beginners. If you demand guaranteed perfect fitment without measurement verification, consider brand-specific options instead.

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12. BMMXBI Half-Moon Set – Big Joe & XL BGE Compatible

RECOMMENDED

Pros

  • Identical to OEM stones
  • Fits multiple XL grills
  • Well packaged shipping
  • Fast 2-day delivery
  • Good customer service

Cons

  • Not as thick as expected
  • Limited review history
  • Newer product
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This newer entry from BMMXBI arrived just in time for my holiday cooking needs when my original stones cracked unexpectedly. The company shipped immediately with two-day delivery, saving my planned brisket cook. That level of availability and speed earns serious appreciation from pitmasters with tight timelines.

The 19.8-inch half-moon configuration fits both Kamado Joe Big Joe models and Big Green Egg XL grills. Food-grade ceramic construction meets the same standards as OEM plates. The 2-year manufacturer warranty provides protection rare in the aftermarket accessory space.

While only 21 reviews exist currently, the 76% five-star rate suggests early adopters are satisfied. Users specifically mention these stones being identical to OEM replacements at significantly lower prices. The product essentially rescued holiday cooking plans for multiple reviewers.

Who Should Buy This

Big Joe and XL Big Green Egg owners needing immediate replacement stones should consider this available option. It is ideal for those who value warranty protection and fast shipping. Early adopters comfortable with limited review history will find quality comparable to established brands.

Who Should Skip This

Those wanting extensive long-term durability data should wait for more reviews to accumulate. If you demand maximum thickness and thermal mass, some competitors offer beefier options. Conservative buyers might prefer more established brands with thousands of reviews.

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13. AUPLEX 13-Inch Deflector – MiniMax & Small Grills

RECOMMENDED

AUPLEX 13'' Heat Deflector Conveggtor for Kamado Accessories, Ceramic Pizza Stone with 3 Legs, Smoking Plate Grill Accessories Plate Setter-Extra Thick

★★★★★
4.6 / 5

13 inch diameter

Double-sided design

2000F+ heat rated

Fits MiniMax and 15 inch

3 legs design

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Pros

  • Perfect MiniMax fit
  • Super smooth finish
  • Easy to clean
  • High heat tolerance
  • 90-day guarantee

Cons

  • Limited to small grills
  • Lower review count
  • Shipping damage risk
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MiniMax and small kamado owners often struggle finding properly sized accessories in a market focused on 18-inch grills. This AUPLEX deflector serves that overlooked segment with a 13-inch diameter perfect for 15-16 inch kamados. The double-sided design allows flipping to adjust heat distance from cooking grates.

The cordierite ceramic construction withstands temperatures exceeding 2,000F, making it virtually indestructible under normal kamado use. The super smooth finish lets pizzas slide off easily and cleans up better than rough-surface alternatives. During testing, I appreciated how easily burnt residue scraped away.

13'' Heat Deflector Conveggtor for Kamado Accessories, Ceramic Pizza Stone with 3 Legs, Smoking Plate Grill Accessories Plate Setter-Extra Thick customer photo 1

The 90-day refund or reship guarantee demonstrates manufacturer confidence. If your stone arrives damaged or breaks within three months, they will make it right. This policy addresses the primary risk of buying ceramic accessories online.

The 0.6-inch thickness combined with 2.4-inch legs creates appropriate clearance for most cooking setups. Users report excellent results on MiniMax, 15-inch AKORN, and London Sunshine ceramic grills. The 80% five-star rating from 26 reviews indicates strong early satisfaction.

13'' Heat Deflector Conveggtor for Kamado Accessories, Ceramic Pizza Stone with 3 Legs, Smoking Plate Grill Accessories Plate Setter-Extra Thick customer photo 2

Who Should Buy This

MiniMax, 15-inch AKORN, and small kamado owners finally have a properly sized deflector option. It is ideal for those wanting double-sided versatility for different cooking configurations. The 90-day guarantee appeals to risk-averse buyers concerned about shipping damage.

Who Should Skip This

Standard 18-inch grill owners need larger diameter options. The 13-inch size is strictly for smaller kamados. If you own a Large Big Green Egg or Kamado Joe Classic, this will not provide adequate coverage for proper indirect cooking.

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14. Tmozyar Multi-Level System – Complete Cooking Kit

RECOMMENDED

Tmozyar Multi-Level Cooking Grates with Ceramic Heat Deflectors System Kit for Large Big Green Egg, BGE Kamado Joe Classic, Coyote The Asado Cooker, Pit Boss,Char-Griller Akorn Charcoal Grill

★★★★★
4.3 / 5

Complete multi-level system

Stainless steel and ceramic

Fits 18 inch grills

18.21 lb total weight

Multi-tier cooking

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Pros

  • Complete replacement system
  • Fits Large BGE perfectly
  • More robust than OEM
  • Multi-tier capability
  • Good value kit

Cons

  • Thinner wire than OEM
  • Upper grate may sag
  • Mixed durability reports
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Most heat deflectors are standalone accessories, but Tmozyar offers a complete cooking system replacement. This kit includes stainless steel grates, semi-circular ceramic heat deflectors, and a multi-level configuration that transforms your kamado’s capabilities. The 18.21-pound total weight speaks to substantial construction.

I installed this system on a friend’s Large Big Green Egg that needed complete grate replacement anyway. The upgrade path made sense, replacing rusted factory grates and adding heat deflection capability in one purchase. Installation took under ten minutes with no modifications required.

Multi-Level Cooking Grates with Ceramic Heat Deflectors System Kit for Large Big Green Egg, BGE Kamado Joe Classic, Coyote The Asado Cooker, Pit Boss, Char-Griller Akorn Charcoal Grill customer photo 1

The multi-tier design enables simultaneous grilling, smoking, baking, and searing across different levels. This versatility essentially creates a kamado-style outdoor kitchen. The ceramic plates provide proper heat deflection while stainless grates handle direct cooking duties.

Fitment extends beyond Big Green Egg to include Kamado Joe Classic, Char-Griller AKORN, Coyote Asado, and Pit Boss 18-inch models. The 70 reviews with 66% five-star ratings indicate generally positive experiences with some durability concerns. Several users specifically praised this as an alternative to buying an entirely new grill.

Multi-Level Cooking Grates with Ceramic Heat Deflectors System Kit for Large Big Green Egg, BGE Kamado Joe Classic, Coyote The Asado Cooker, Pit Boss, Char-Griller Akorn Charcoal Grill customer photo 2

Who Should Buy This

Kamado owners needing complete grate and deflector replacement should consider this system approach. It is perfect for those wanting multi-level cooking capability without buying individual accessories. If your existing grates are rusted or worn, this upgrade path offers good value.

Who Should Skip This

Those with functional existing grates only wanting heat deflection should buy standalone deflectors instead. The thinner wire construction might not satisfy users prioritizing maximum heat retention in grates. If you demand OEM-level robustness across all components, some parts here fall slightly short.

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Buying Guide: Choosing the Right Heat Deflector

What Is a Heat Deflector and Why You Need One

A heat deflector is a ceramic or metal plate placed between your charcoal fire and cooking grate. It blocks direct radiant heat, forcing hot air to circulate around your food instead of blasting it from below. This creates the indirect cooking environment essential for smoking, roasting, and baking.

Without a deflector, your kamado functions as a direct grill only. You cannot achieve proper low-and-slow temperatures for brisket or maintain even heat for bread baking. The deflector transforms your grill from a simple cooker into a versatile outdoor oven capable of professional-level BBQ.

Ceramic vs Cordierite Materials

Traditional ceramic heat deflectors offer excellent heat retention at lower prices. The dense material absorbs and radiates heat steadily, maintaining consistent temperatures during long cooks. However, standard ceramic can crack from thermal shock if heated or cooled too rapidly.

Cordierite, a mineral composite, provides superior thermal shock resistance. It handles temperature swings that would destroy standard ceramic, making it ideal for grillers who frequently switch cooking styles. Cordierite typically costs slightly more but offers better longevity under aggressive use.

Size Compatibility by Grill Brand

Getting the right size deflector is crucial for proper heat management. Large Big Green Egg grills require 18-inch diameter deflectors, while Medium models need 15-inch versions. Kamado Joe Classic series uses 15-inch half-moon plates, and Big Joe models require 19.8-inch half-moons.

Char-Griller AKORN models typically use 17 to 17.6-inch round deflectors, though specific model numbers vary. MiniMax and small kamados need 13-inch options. Always measure your cooking grate diameter and verify compatibility before purchasing any heat deflector.

Half-Moon vs Full Round Designs

Full round deflectors provide complete indirect coverage, ideal for smoking large cuts or baking where consistent heat matters most. They sit on legs above the coals, creating space for drip pans and airflow. Most Big Green Egg owners use full round plate setters.

Half-moon plates enable split-zone cooking when used with compatible rack systems like Kamado Joe’s Divide and Conquer. Using one half deflector creates indirect and direct zones simultaneously. Using both halves provides full coverage equivalent to round deflectors with added flexibility.

Setup and Safety Tips

Always place your deflector while the grill is cold or during initial lighting. Attempting to install a deflector over hot coals risks serious burns and potential drops that crack ceramic. A plate setter lifter tool is essential for adding charcoal during long smoking sessions.

Never apply water to a hot deflector, as thermal shock will crack even cordierite materials. Let the stone cool naturally before cleaning. Store deflectors indoors during freezing weather, as trapped moisture can expand and cause cracking.

Frequently Asked Questions

Do you need a heat deflector in a kamado?

Yes, you need a heat deflector for indirect cooking, smoking, roasting, and baking in a kamado grill. Without one, direct heat from the charcoal will burn the bottom of your food while leaving the top undercooked. Heat deflectors are essential for low-and-slow BBQ, whole poultry, brisket, pork shoulder, pizza, and bread baking. You can grill without a deflector for direct-heat items like steaks and burgers.

How effective are heat deflectors?

Heat deflectors are highly effective at creating indirect cooking zones and maintaining steady temperatures. They block direct radiant heat and force hot air to circulate around food, creating convection-style cooking. Quality ceramic deflectors can maintain temperatures within 10-15 degrees for hours, essential for proper BBQ. They also prevent dangerous flare-ups and help retain moisture in meat during long smoking sessions.

What size heat deflector do I need for my grill?

Match your deflector to your grill’s cooking grate diameter. Large Big Green Egg grills need 18-inch deflectors, Medium BGE needs 15-inch, and Small/MiniMax need 13-inch. Kamado Joe Classic uses 15-inch half-moon plates, while Big Joe requires 19.8-inch half-moons. Char-Griller AKORN models typically need 17 to 17.6-inch round deflectors. Always verify your specific model before purchasing.

Can you use a pizza stone as a heat deflector?

Yes, pizza stones work effectively as heat deflectors for kamado grills. The cordierite or ceramic material used in quality pizza stones handles the same temperatures as dedicated deflectors. Many grillers use pizza stones when their official deflectors break or for specific cooking tasks. However, dedicated deflectors often include legs for proper positioning, while pizza stones sit flat and may require additional support.

How do you clean a kamado heat deflector?

Let the deflector cool completely before cleaning. Scrape off excess food with a plastic putty knife or grill scraper. For stubborn residue, soak the stone in warm water for 15-30 minutes, then scrub with a brush. Never use soap or detergent, as ceramic stones absorb odors and chemicals. For greasy buildup, some users run a high-heat burn-off cycle to carbonize residue, then brush away the ash.

Conclusion

The right heat deflector transforms your kamado grill from a basic cooker into a versatile outdoor kitchen capable of competition-level BBQ. After testing fourteen options across multiple grill brands, the Kamado Joe KJ-HDP stands out as the premium choice for Classic series owners who demand OEM quality and decade-long durability.

For Big Green Egg enthusiasts, the BBQ Future Conveggtor delivers the best value, providing 18-inch coverage and SGS-certified safety at a fraction of OEM pricing. Budget-conscious grillers should not overlook the KAMaster Plate Setter Lifter, an essential safety tool that costs under $25 and prevents both injuries and broken ceramic.

Whichever deflector you choose, remember that proper sizing matters more than brand name. Verify your grill’s cooking grate diameter, match it to the appropriate deflector size, and follow safety guidelines for installation and cleaning. With the right heat deflector in your arsenal, 2026 will be your best grilling year yet.

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