... features1. The upright tank can make the water temperature to a high level. It can hot the water instantly. 2. ... The pressurized solar water heater collector and the water tank is separated, that makes the system combine with the building ... 5L, 8L, 12L, 19L, 20L, 24L 12. Pressure resistance: 10 bar pressure for expansion vesselHeat pipe solar water heater specification:DescripitionSplit solar water ...