Sturdy design: the body is mainly made of robust cast iron, and the firebox is also made of heat-resistant fireclay. The wide filler door opening allows larger logs to be inserted easily. Clean combustion: tested for wood and lignite fuels. Depending on the type of fuel and operating status, secondary air can be added in doses. Unburnt components are thus safely post-combusted, leading to even higher energy utilization. This process also results in lower pollution of the environment. Fuels: logs, lignite briquettes. Complies with 1.BImSchV/1st stage. Heat: kW: 6. Height to lower edge of pipe socket: 56.4 cm. Pipe socket diameter: 120 mm. Connection at rear. Filling door opening dimensions (H x W in mm): 250 x 320. Overall dimensions (H x W x D in cm): 97.9 x 54.2 x 35.