| 摘要 |
The heating device consists of at least one inner housing (9) and a casing (10), the interspace (3) between the housing and casing being filled with foamed plastic (1) for thermal insulation. To reduce the volume of the interspace (3) to be filled with foamed plastic and thus also the curing time for the foamed plastic, the foamed plastic is arranged in the interstices (2) of plastic foam lumps (4) arranged in the interspace (3). <IMAGE>
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