Standing storage tank 400 litre capacity. Closed inner container, 6 bar, made of steel, specially enamelled, with protective anode. Outer casing white plastic, thermal insulation made of polyurethane rigid foam. Temperature selector continuously adjustable from approx. 35 °C to 82 °C. Energy saving setting at 'E' = 40 °C and 'e' at 60 °C. Safety temperature limiter. For single and dual circuit connection, button for rapid heating. Device switch for switching from 8 to 4 hours release time. Connection piece for circulation line G 3/4 (R 3/4) and sleeve for dial thermometer ZT 34 (accessory). Quality and safety marks: CE mark, VDE / GS mark, radio protection mark / EMC, DIN AGI.