KAWMET W3 / W4 (175x222) Cast Iron Grate, 2 pcs
KAWMET W3 / W4 (175x222), 2 pcs is a cast iron fire grate measuring 175 × 222 mm, intended for KAWMET W3 / W4 fireplace inserts. A replacement part — it fits in place of the original grate with no modification to the firebox. The firebox of these models is lined with 2 grates — the set contains both.
The grate is the floor of the firebox: it holds the fuel, lets primary air in from below and drops the ash through into the ash pan. How freely it flows decides whether the wood gets oxygen evenly across its width — a clogged or burnt-through grate means a fire burning on one side, a smoking pane and a loss of output that is easily mistaken for a chimney fault.
Key features — KAWMET W3 / W4 (175x222)
- Dimensions 175 × 222 mm — firebed area approx. 390 cm²
- Fits KAWMET W3 / W4 fireplace inserts
- Set of 2 — the number that goes into one firebox
- Material: cast iron — unlike steel it does not warp when heated
- A wear part, replaced without dismantling the appliance
- Manufacturer: KAWMET, Poland
Which models KAWMET W3 / W4 (175x222) fits
The grate is intended for the KAWMET W3, KAWMET W4 fireplace inserts. These models share the same seat dimensions, which is why they take a common grate.
If you are unsure of the model, the surest check is the measurement: take the old grate out of the cooled firebox and measure it. This one is 175 × 222 mm — if yours matches to within a few millimetres, it is the same part. A smaller grate will shift in its seat, a larger one will not go in.
When to replace the grate
A grate is a wear part — it wears out faster than the body and exists precisely so that it can be replaced. Signs that it is time:
- A crack across a bar — the most common symptom, usually after years of service or after a hot grate has been cooled abruptly.
- Burnt, thinned bars — the gaps widen and smaller pieces of wood drop into the ash pan instead of burning out.
- Warping — the grate no longer sits flat in its seat, rocks when wood is added, and primary air escapes around the sides.
- The fire burns unevenly — embers on one side, barely smouldering on the other, despite an evenly stacked load.
Replacement does not require dismantling the insert: once the firebox has cooled and the ash has been removed, the old grate lifts out of its seat and the new one goes in its place.
How do I check whether KAWMET W3 / W4 (175x222) fits my firebox?
Measure the old grate once the firebox has cooled — this one is 175 × 222 mm. A match to within a few millimetres means the same part. Check the appliance model name as well; the grate is assigned to models W3 / W4.
How can I make the grate last longer?
The most important thing is emptying the ash pan regularly. Ash left under the grate cuts it off from the cooling air, and overheated cast iron wears out much faster. Beyond that: do not douse embers with water, do not force a poker through a hot grate, and do not overload the firebox beyond the recommended charge — excess wood means a higher temperature than the manufacturer allowed for.
Does the set include both pieces?
Yes. The firebox of these models is lined with 2 grates and that is what this set contains. They are replaced as a pair — a single new grate next to a worn one would sit at a different height and the fuel would rest unevenly.
KAWMET grates are cast in Poland, at the works in Zadąbrowie. Your nearest representative will confirm availability and purchase terms.
