There are 7 vermiculite bricks in a Woody Eco (CAT version), you can purchase them individually or in a set:
- left side,
- right side,
- back bricks top pair,
- back brick bottom pair
- throat plate brick.
These are different to the bricks in the non Ecodesign Woody. If you are not sure if your Woody is Ecodesign or not, look at the handle. On the Ecodesign Woody the mechanism is hidden, only a slot is visible. The original Woody, that is not Ecodesign, has an external handle latch on the body of the stove.
To identify the catalytic converter (Cat) version, look upward to the roof of the firebox, you will see two rectangular grids, these are the catalytic converters.