# Firebox for Kamado 21" — TUNABONE Firebox 21 (grill accessory)

**URL:** https://aio.lv/en/product--tunabone-firebox-21--12040485
**Data updated:** 2026-03-12 16:49 (EET)
**Category:** Grill Accessories
**Manufacturer:** TUNABONE
**Manufacturer code:** Firebox 21
**EAN:** 2000001343999
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 121.49 €
**Prices and availability valid until:** 2026-07-12 23:59
**Price without VAT (21%):** 100.40 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--tunabone-firebox-21--12040485

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 03.07.2026 | free |
| Pickup points | 08.07.2026 | 1.99 EUR |
| Courier delivery to door | 08.07.2026 | 4.99 EUR |

## Summary description

TUNABONE Firebox 21 is a replacement firebox designed for 21" Kamado-style grills. It serves as the internal combustion chamber that holds charcoal and supports grates, enabling controlled heat and airflow for grilling, smoking and roasting. Compatible with 21-inch Kamado units, it helps maintain consistent temperature and simplifies maintenance and fuel changes during cook sessions.

## Long description

TUNABONE Firebox 21 is a replacement firebox designed specifically for 21" Kamado-style grills. It functions as the internal combustion chamber that holds charcoal, supports cooking grates and manages the flow of air through the grill. Intended to fit 21-inch Kamado units, this firebox restores the grill's internal geometry to enable consistent temperatures, stable combustion and easier ash and fuel handling during grilling, smoking and roasting.
Advantages
The firebox provides a direct-fit replacement to re-establish correct airflow and heat distribution inside a 21" Kamado. Built to withstand high cooking temperatures, it simplifies maintenance by consolidating charcoal and ash in a single removable chamber. Its form supports standard grate placements and helps achieve predictable cooking results across long low-and-slow sessions as well as high-heat searing.
Suitable for
 Replacement of a worn or damaged internal combustion chamber in 21" Kamado grills
 Users who need easier ash removal and quicker fuel changes during multi-hour cooks
 Grilling, smoking and roasting that require stable temperature control and consistent airflow
 Maintenance and restoration of correct grate positioning and internal clearances
Key specifications
 Designed for 21-inch Kamado-style grills
 Holds charcoal and ash as an integrated combustion chamber
 Supports standard cooking grate placement and spacing
 Constructed to resist typical high cooking temperatures inside Kamado units
 Facilitates controlled airflow for grilling, smoking and roasting
How to use
Install the firebox by removing the existing internal fire chamber or ash pan from the 21" Kamado, then place the TUNABONE Firebox 21 into the grill so the grate rests on the designated supports. Add charcoal and light according to your usual procedure, then adjust vents to achieve the desired temperature. During cooking, use the removable nature of the firebox to clear ash or change fuel with minimized disturbance to the cooking grates and food.
Usage recommendations
For consistent results, preheat the grill with the firebox in place and monitor dome thermometer and vent settings while stabilizing temperature. Empty cooled ash regularly and inspect the firebox for cracks or warping after extended high-temperature use. Use compatible grate sizes and follow the grill manufacturer’s guidance for clearances and support positions.

## FAQ

### How much does the TUNABONE Firebox 21 — Firebox for Kamado 21" cost, and is it available for purchase?

The price is 121.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 1 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 03.07.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Bank cards on-line, Apple Pay, Google Pay, Installment. All transactions are 100% secure and encrypted.

### Can TUNABONE Firebox 21 — Firebox for Kamado 21" be purchased with a lease?

Yes, the purchase is available both on credit and with an interest-free installment plan. Learn more about installments and credit options: https://aio.lv/en/payment#b3

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All TUNABONE products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized TUNABONE service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

## Image

https://aio.lv/img/cache/product/12040485/68524733_large.webp