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The best heat deflector for kamado grills blocks direct flame so you can smoke ribs, roast chicken or bake at steady, indirect heat. Half-moon plates let you set up two zones, while one-piece stones are simple to drop in on small grills.
We compared five deflectors on Amazon US by size, grill fit, material and setup.

Quick Answer: The Best Heat Deflector for Kamado
- Best OverallSUONA 15 in. Half-Moon Heat Deflector Plates for Kamado Joe
- Best BudgetCmanzhi 15 in. Ceramic Heat Deflector Plates, 2-Pack
- Best for Classic JoeHalf-Moon Ceramic Heat Deflector Plates for Kamado Joe Classic
- Best for Big JoeHalf-Moon Heat Deflector Plates for Kamado Joe Big Joe
- Best SmallAUPLEX 13 in. Heat Deflector Conveggtor for Kamado
SUONA’s 15-inch half-moon plates are our top pick for 18-inch kamados because they allow two-zone cooking. Cmanzhi’s pair is the budget choice, the Classic Joe plates are made for that grill, the Big Joe plates fit 24-inch grills and AUPLEX’s 13-inch stone suits small kamados.
Best Heat Deflector for Kamado Comparison Table
| Product | Best For | Type | Key Feature | Buy |
|---|---|---|---|---|
| SUONA Half-Moon Deflectors | Best Overall | Kamado heat deflector | Half-moon ceramic plates | Check Price |
| Cmanzhi Deflectors (2) | Best Budget | Kamado heat deflector | Two 15 in. ceramic halves | Check Price |
| Half-Moon Plates for Classic Joe | Best for Classic Joe | Kamado heat deflector | Classic Joe replacement plates | Check Price |
| Big Joe Half-Moon Plates | Best for Big Joe | Kamado heat deflector | Plates for 24 in. Big Joe | Check Price |
| AUPLEX 13 in. Deflector | Best Small | Kamado heat deflector | One-piece 13 in. stone | Check Price |
5 Kamado Heat Deflectors Compared
Ranked by fit, flexibility and value.
1. SUONA 15 in. Half-Moon Heat Deflector Plates for Kamado Joe
1. Half-moon.
👍 Pros & Cons
Pros
- Two halves for two-zone cooking
- Replacement for worn plates
- Lower price
Cons
- Check model fit
- Ceramic can crack if wet and hot
📄 Detailed Review
- Size: 15 in.
- Fits: Kamado Joe Classic (maker)
- Material: Ceramic
Half-moon plates for two-zone kamado cooks.
Our top pick.
2. Cmanzhi 15 in. Ceramic Heat Deflector Plates, 2-Pack
2. 2 halves.
👍 Pros & Cons
Pros
- Pair of halves
- Fits common 18 in. grills (maker)
- Budget friendly
Cons
- Fit varies by brand
- Not the original Kamado Joe part
📄 Detailed Review
- Size: 15 in.
- Pieces: 2
- Fits: 18 in. kamados (maker)
A budget pair of half-moon plates.
Best budget.
3. Half-Moon Ceramic Heat Deflector Plates for Kamado Joe Classic
3. Model fit.
👍 Pros & Cons
Pros
- Made for Classic Joe racks
- Low and slow ready
- Two halves
Cons
- Fit is model-specific
- Ceramic needs gentle heat-up
📄 Detailed Review
- Fits: Kamado Joe Classic (maker)
- Material: Ceramic
- Pieces: 2
A model-specific pair for Classic Joe owners.
Best for Classic Joe.
4. Half-Moon Heat Deflector Plates for Kamado Joe Big Joe
4. 24 in.
👍 Pros & Cons
Pros
- Sized for Big Joe
- Two-zone setups
- Replacement option
Cons
- Only for Big Joe
- Heavy
📄 Detailed Review
- Fits: Big Joe (maker)
- Material: Ceramic
- Pieces: 2
Deflector plates for big 24 in. grills.
Best for Big Joe.
5. AUPLEX 13 in. Heat Deflector Conveggtor for Kamado
5. 13 in.
👍 Pros & Cons
Pros
- One-piece stone
- Sized for small grills
- Simple to drop in
Cons
- Check your grill size
- No two-zone halves
📄 Detailed Review
- Size: 13 in.
- Fits: Small kamados (maker)
- Material: Ceramic
A one-piece stone for small kamados.
Best small.
How We Chose the Best Heat Deflector for Kamado
To build this guide to the best heat deflector for kamado, we compared kamado grills and heat deflectors listed on Amazon US by size, material, fit, heat holding and included parts, using product details from the listings and makers. We then looked at common praise and complaints in buyer feedback for cracks, rust, fit problems and how steady each grill holds low temperatures. Ratings and prices change often, so check the current listing before you buy.
Use heat-proof gloves, burp the lid to avoid flashback, and cook meat to safe temperatures following USDA Food Safety and Inspection Service cleanliness guidance. Our method is explained on the How We Test page; this is a research-based guide, not a lab test.
Buying Guide: Kamado Heat Deflectors
Grill Size
Match the plate size to your grate: 13, 18 or 24 inches.

Half-Moon vs One-Piece
Halves allow two zones; one piece is simpler.
Material
Ceramic or cordierite handles high heat.
Rack
Some plates need the maker rack system to sit right.
Care
Keep plates dry; water inside ceramic can crack it.
Tips for Kamado Cooking
- Burp the lid: open it a little first to avoid a flare.
- Use lump charcoal and small vent changes.
- Add the deflector for low and slow cooks.
- Keep ceramic parts dry to avoid cracks.
- Check the gasket and hinge each season.

Quick answers to common questions about the best heat deflector for kamado.
Frequently Asked Questions
What is the best heat deflector for a kamado?
SUONA’s half-moon plates for most 18-inch kamados.
Do I need a heat deflector for a kamado?
Yes for smoking, roasting and baking; not for direct searing.
Can I use a pizza stone as a deflector?
Sometimes, if it fits and is rated for the heat, but true deflectors sit better.
Why did my deflector crack?
Fast heating of a damp plate is a common cause; keep it dry.
Final Verdict
Our pick for the best heat deflector for kamado grills is the SUONA half-moon plates. On a budget, choose the Cmanzhi pair.
Related Guides
Keep exploring grilling and hot stone gear with these guides:
Prices and availability change often. Check the current listing on Amazon before you buy.





