The spacious firebox, made of heat-resistant concrete, is designed for logs up to 33 cm in length. Its main component is a patented mechanical grate that allows for easy ash removal and simple lighting. With just a few movements of the lever, the ash falls from the loading chamber directly into the ash pan. Ash grating in the stove can also be done with the door closed, preventing dust from swirling in the room. Thanks to its bowl-shaped design, the grate can reliably hold a small amount of ash, which acts as a natural insulation, contributes to its longer lifespan, and helps speed up lighting.