Flame Boss 400 Wi-Fi Kamado Kit
The kamado controller with an app, if your Wi-Fi cooperates — A Wi-Fi blower that is the whole controller: three meat probes and a pit probe, configured from the Flame Boss app. AmazingRibs called its regulation "the best that I have observed to date" — and its 555 Amazon owners rate it 4.1★, with 12% at one star over Wi-Fi drops.
Sold by Flame Boss, shipped by Amazon · Free 30-day refund/replacement · read 2026-10-11
Specs
| Fits | Kamado-style cookers (Big Green Egg, Kamado Joe, Primo and others via the kamado adapter) |
| Control | Variable-speed blower with Wi-Fi built in; set entirely from the app |
| App / Wi-Fi | Wi-Fi (2.4 GHz); app required to configure |
| Probes | 1 pit + up to 3 meat |
| Warranty | 2 years on the device (Flame Boss); its pages disagree on probes (1 year vs "all parts" 2 years); Flame Boss purchases only |
| Owner rating | 4.1★ / 555 |
| Model | FB400K |
Pros
- AmazingRibs' instrumented cook: "The temperature regulation is the best that I have observed to date", and a Gold Medal
- Watch and change the pit from anywhere your phone has signal; text alerts when the pit drifts or the meat is done
- Sold on Amazon by Flame Boss itself, which its warranty requires
- The kamado kit and the universal kit share one controller, so a second cooker needs only an adapter
Cons
- Wi-Fi is the dominant complaint: "Routinely got a message that said it was unable to connect to WiFi", a dual-band router warning, and Thanksgiving cooks lost to dropouts
- No screen on the unit: if the app or the network fails, you cannot change the set point at the cooker
- AmazingRibs ran its test on a Weber Smokey Mountain with the universal adapter, not on a kamado
- Flame Boss's warranty covers only units bought from Flame Boss and used in the United States
Wi-Fi and the app. "It simply does not connect to your phone", "It was great when it worked but it only worked 40% of the time", "Everything went well for an hour and then their server crashed", and a unit that "stopped connecting to the network" after two and a half years.
at the October 11 read, 16 percent of 556 owner ratings were one or two stars; the 10 most recent of 91 critical written reviews read · critical reviews read 2026-10-11
“It works exactly like you'd expect it to, as long as their software is up and running.”— Brad Prose, Amazon · Verified owner
Pro review “The temperature regulation is the best that I have observed to date.”Instrumented cook on an 18.5 in Weber Smokey Mountain with the universal adapter (same controller as this kamado kit); Gold Medal; page updated 2025-11-05; quote matched verbatim 2026-10-12— Bill McGrath, AmazingRibs
FAQ
Who is the Flame Boss 400 Wi-Fi Kamado Kit for?
You want to set and watch your kamado from your phone, your Wi-Fi reaches the cooker, and you will keep the vents half-shut the way Flame Boss asks.
What do owners say about the Flame Boss 400 Wi-Fi Kamado Kit?
4.1★ across 555 owner ratings (Amazon, read 2026-10-26 · global base). What owners complain about: Wi-Fi and the app. "It simply does not connect to your phone", "It was great when it worked but it only worked 40% of the time", "Everything went well for an hour and then their server crashed", and a unit that "stopped connecting to the network" after two and a half years.
Who sells the Flame Boss 400 Wi-Fi Kamado Kit on Amazon, and can it be returned?
Sold by Flame Boss, shipped by Amazon, when we read the listing on 2026-10-11. Amazon's returns line read: Free 30-day refund/replacement. Sellers and return terms can change, so check both on the listing before you buy.
What is the warranty on the Flame Boss 400 Wi-Fi Kamado Kit?
2 years on the device (Flame Boss); its pages disagree on probes (1 year vs "all parts" 2 years); Flame Boss purchases only
Does the Flame Boss 400 Wi-Fi Kamado Kit warranty still apply if I buy it on Amazon?
Flame Boss answers that in its own warranty document, which we read on 2026-10-12: Warranty of repair or replacement will extend only to products purchased from Flame Boss®, and subsequently operated, in the United States and the District of Columbia. We quote the maker rather than deciding your case — read the document before you buy if the warranty is why you are buying.
Record
- — Added as the kamado controller with an app: $199 sold by Flame Boss, read 2026-10-11 with its critical tail.
Warranty — and what changes if you buy it on Amazon
2 years on the device (Flame Boss); its pages disagree on probes (1 year vs "all parts" 2 years); Flame Boss purchases only · you are buying this on Amazon
Warranty of repair or replacement will extend only to products purchased from Flame Boss®, and subsequently operated, in the United States and the District of Columbia.
Flame Boss’s own warranty document · read
Read it yourself: Flame Boss warranty document · we read it . Terms change without announcement, so treat this as a dated snapshot. How warranty works by buy path →
✓ Safety: no active recall — CPSC recall API 2026-10-12: RecallTitle=Flame Boss → 0 records (control Ninja returned its recalls at the start and end).
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Data last verified: 2026-10-26. Ratings are real, dated reads — never scraped or invented. Full methodology and monetization disclosure: how we test.