1. The document provides product information for high-capacity steel storage tanks made by Behälterbau GmbH, including the HLS tank model. 2. Details are given on the construction of the HLS tanks, including insulation, connections, dimensions, and specifications for 5 tank sizes between 150-500 liters. 3. Performance characteristics such as heating area, water content, pressure loss, and continuous output are listed for each HLS tank size.