Published 3 August 2026 · Last updated 15 October 2026 · By Ben Austen · Affiliate disclosure
A kamado heat deflector is a ceramic plate that sits between the fire and the food, so you cook indirect, with the heat coming round the food rather than straight up at it. Some people call it a plate setter. Every long cook I’ve done on my Big Green Egg Large has been indirect, on the ConvEGGtor (ceramic deflector) that came with it: pulled pork, pork belly burnt ends, bone-in pork loin and lamb rump. That’s the one deflector here I’ve used. What I say about the other five comes from the makers’ own specs and from people who’ve cooked with them, and I checked every price in October 2026.
Tick Compare on any two or more to see them side by side.
Best Big Green Egg deflector Tested
ConvEGGtor (Large)
The deflector that came with my Egg, and I’ve never needed another.
- More than twenty cooks on mine, no cracks
- Sits over the fire
- Came with my Large
Two ways at once Researched
Big Green Egg Dual Zone Essentials Kit
Direct on one half and indirect on the other, on a Big Green Egg Large.
- Two half-moon deflectors and two half-moon grids
- Two levels
- Comes with a new Large, says Big Green Egg
Cheapest for an Egg Researched
Big Green Egg Half Moon Ceramic Deflector
One half-moon, so one side direct and one indirect.
- Fits the Large
- Big Green Egg sells it for baking too
- £40 at Big Green Egg UK
Best Kamado Joe deflector Researched
Half-Moon Deflector Plates
A pair of half-moons for a Kamado Joe Classic.
- One in for a direct and an indirect side
- Both in to cook indirect across the grill
- £79.99 for the Big Joe
Best Kamado Joe upgrade Researched
SlōRoller with Rack
A ceramic insert Kamado Joe says turns it into a smoker.
- Comes with the Classic III and Big Joe III
- £269.99 for the Big Joe
- Food Fire Friends says it made his cooks more consistent
Best Monolith deflector Researched
Monolith .55 Classic Deflector Stone
Monolith’s two-piece stone for the .55 Classic, with a lifter.
- Two pieces, with a lifter
- £38.90 at Black Box BBQ
- Check it fits your Monolith first
Key takeaways
- If you’ve got a Big Green Egg Large, the ConvEGGtor that came with it is all you need for indirect cooking. Mine’s done more than twenty cooks without a crack. A replacement is £105.
- A new Large now comes with Big Green Egg’s Dual Zone kit instead. On an older Egg it’s a £245 upgrade, for cooking direct on one half and indirect on the other.
- Big Green Egg sells a single half-moon deflector for the Large at £40.
- On a Kamado Joe Classic, the half-moon deflectors are £54.99 a pair and the SlōRoller is £179.99.
- For a Monolith Classic, Black Box BBQ sells the deflector stone at £38.90.
At a glance: the six picks
| Price | Fits | I’ve used it | |
|---|---|---|---|
| Big Green Egg ConvEGGtor | £105 (Large) | Big Green Egg Large | Yes, 20+ cooks |
| Big Green Egg Dual Zone Essentials Kit | £245 (Large) | Big Green Egg Large | No |
| Big Green Egg Half Moon Ceramic Deflector | £40 (Large) | Big Green Egg Large | No |
| Kamado Joe Half-Moon Deflector Plates | £54.99 a pair (Classic) | Kamado Joe Classic | No |
| Kamado Joe SlōRoller with Rack | £179.99 (Classic) | Kamado Joe Classic | No |
| Monolith .55 Classic Deflector Stone | £38.90 | Monolith Classic | No |
Best Big Green Egg deflector: the ConvEGGtor, £105
The ConvEGGtor is Big Green Egg’s own deflector, a round ceramic plate that sits over the fire. Mine came with my Large, and a replacement for the Large is £105 at Big Green Egg UK.
I’ve done more than twenty cooks on mine and it hasn’t cracked or chipped. For a long cook I set it in, put a drip tray with foil in it on top, then the grid and the meat. You can still see the fire glowing round the edge, because it doesn’t seal against the wall, and that’s fine. If you’ve got an Egg that came with one, you don’t need anything else to cook indirect.
Best for cooking two ways at once: Big Green Egg Dual Zone Essentials Kit, £245
The Dual Zone kit is a basket that holds two half-moon ceramic deflectors and two half-moon grids on two levels, so you can cook direct on one side and indirect on the other. It’s £245 for the Large at Big Green Egg UK, and Big Green Egg’s site says every new Large now comes with it. If your Egg came with a ConvEGGtor, like mine, it’s an upgrade.
I haven’t used one. Big Green Egg’s site says it makes it easier to use the Egg’s cooking modes at the same time.
Cheapest Big Green Egg deflector: Half Moon Ceramic Deflector, £40
Big Green Egg sells a single half-moon deflector for the Large at £40. Half the fire is under it and half isn’t, so one side cooks indirect and the other direct. Big Green Egg sells it for baking too.
I haven’t used one.
Best Kamado Joe deflector: Half-Moon Deflector Plates, £54.99
Kamado Joe’s half-moon deflector plates come as a pair, at £54.99 for the Classic or £79.99 for the Big Joe on Kamado Joe’s UK site. With both in you cook indirect across the whole grill, and with one in you get a direct side and an indirect side.
I haven’t used them. Mark Jenner at Food Fire Friends, who’s cooked on Kamado Joes for years, uses one for a direct side and an indirect side, and both together to bake, roast or smoke.
Best Kamado Joe upgrade: SlōRoller with Rack, £179.99
The SlōRoller is a ceramic insert Kamado Joe says turns its kamado into a smoker. It’s £179.99 for the Classic, or £269.99 for the Big Joe, on Kamado Joe’s UK site, and Birstall had the Classic one at the same price. The Classic III and Big Joe III come with one.
I haven’t used one. Mark Jenner at Food Fire Friends says it’s made his smoking and roasting more consistent.
Best Monolith deflector: Monolith .55 Classic Deflector Stone, £38.90
Black Box BBQ sells Monolith’s two-piece deflector stone for the .55 Classic, with a lifter, at £38.90.
I haven’t used one, and Monolith’s other 55cm kamados may need a different stone, so check it fits yours before you buy.
How to reduce the heat in a kamado
Close the vents, and go slowly. To hold 120°C (250°F) on my Egg, the bottom vent is about 99% shut, and to hold 220°C (430°F) it’s open by a finger or two. Small changes make a big difference, so move the vents a little at a time. If you overshoot, the ceramic holds the heat, and it can take an hour to come back down.
How to choose a kamado heat deflector
- You’ve got a Big Green Egg that came with a ConvEGGtor: you don’t need anything else to cook indirect.
- You want to cook direct and indirect at once on an Egg: the Dual Zone kit, or a single half-moon for £40.
- You’ve got a Kamado Joe Classic: the half-moon plates, and the SlōRoller if yours didn’t come with one.
- You’ve got a Monolith Classic: the .55 stone at Black Box BBQ.
Common questions
Do heat deflectors really work?
Yes. Every long cook I’ve done on my Egg has been on the ConvEGGtor, and it holds a low heat for hours.
Do I need a deflector for low-and-slow?
On a kamado, yes. For pulled pork I run my Egg at 110°C (230°F), indirect, with the ConvEGGtor in.
Does a deflector fit any kamado?
No. Each one’s made for a size and a make, so a Big Green Egg Large ConvEGGtor is for a Large, and Kamado Joe’s plates come in Classic and Big Joe sizes.
Sources and how I checked
- My own Big Green Egg Large and the ConvEGGtor that came with it, more than twenty cooks.
- Big Green Egg UK: the ConvEGGtor, Dual Zone kit and half-moon deflector, prices for the Large, October 2026.
- Kamado Joe’s UK site: half-moon plates and SlōRoller, October 2026. Birstall for the SlōRoller.
- Black Box BBQ: the Monolith .55 Classic deflector stone, October 2026.
- Mark Jenner at Food Fire Friends, on the Big Joe III, its deflectors and the SlōRoller.
How I got this, and what I’ve spent
My Big Green Egg Large was a Christmas present from my sister Kate, and the ConvEGGtor came with it. Nobody sent me any of these deflectors, and nobody at Big Green Egg, Kamado Joe, Monolith or the shops has seen this before you have. None of the links here are affiliate links, so nothing here earns a commission.
Final verdict
If your kamado came with a deflector, start with that. Mine’s done more than twenty cooks and I’ve never needed anything else. If you want to cook direct and indirect at the same time, Big Green Egg’s Dual Zone kit or Kamado Joe’s half-moon plates do it.