Adezz Cosa Fire Pit and Plancha Grill | Corten Steel

Dimensions: Ø635 x H600 mm, Thickness: 3 mm, Weight: 39 kg.

It burns wood. The grill ring lifts out, so you can switch between cooking on the plate and using it as an open fire bowl.

It includes drainage holes and stainless steel mounting materials, plus the removable grill ring.

We do not recommend using corten steel within 2 km of a coastline. Rust can be fixed by applying Owatrol. This is a penetrating rust inhibitor that forms a protective anti-rust coating. Owatrol protects the product and stops the rust on corten steel flaking off.

We deliver Free to mainland United Kingdom within 5 to 10 working days. Additional charges may apply for remote areas in Scotland, Wales, Devon and Cornwall. Larger items are delivered on a pallet, kerbside, the driver isn’t required to carry it past obstacles like steps, so let us know at checkout if your access is tricky.

It’s backed by Adezz’s 5-Year Manufacturer Guarantee. On top of that, Fireside Boutique’s standard policy is 45-day returns on unused items in their original packaging (you cover return shipping on a non-faulty return, which is worth weighing up given the weight of these pieces).

The Cosa is the one Adezz piece that is genuinely both a fire pit and a plancha. At Ø635 x H600 mm and 39 kg in 3mm Corten it is far smaller and lighter than the Seare planchas, and at £939 it is the least expensive of the dedicated Adezz plancha pieces, which makes it the sensible pick for a patio that cannot host a 130 kg cooking station.

A wood-fired plancha asks you to build and manage a fire before you cook, which takes longer and gives you smoke, flame and the ritual of it. A gas-fired plancha lights on a piezo spark and comes up to temperature without logs or ash, which is what makes weeknight cooking realistic. Adezz makes both in the same Seare Halo body, so the decision is purely how much effort you want the cooking to ask of you: the wood Seare Halo at £1,895, or the Seare Halo Piezo at £2,095. The Cosa sits outside that choice: it is wood-fired, and doubling as a fire pit on a small patio is the reason to pick it.

Adezz builds the Cosa in Corten, not stainless, and the two age in opposite directions. Corten is weathering steel: it forms a stable rust-coloured oxide layer that then protects the metal beneath, and the Cosa holds that russet colour for 20 to 30 years with no painting and no winter storage. Brushed stainless instead keeps the finish it arrived with and never patinates, which suits a contemporary terrace of glass, render and pale stone, though it wants an occasional wipe to stay that way. Choose the Cosa, which is Corten, if you want the piece to settle into the garden and read as part of it; if a fixed silver finish matters more, our stainless fire pit guide covers the alternatives we stock. The one thing to plan for is the Cosa's first season: Corten bleeds orange run-off onto pale paving while it patinates, and on porous stone that can leave a permanent mark, so settle its position before you light it. Our fire pit materials guide sets out how each material ages.

A plancha is a solid steel cooking plate heated from beneath, so it handles fish, vegetables and anything that would fall through a grill bar. The Dome pizza oven is a closed wood-fired chamber for pizza and bread instead. A plain fire pit like the Halo is for the fire rather than the food. If you want one piece that does fire and cooking on a small patio, the Cosa at £939 is the compact answer.