RTG 351 - How much water can the device heat up? Gustav 12 August 2025 08:50 Updated Depending on the container, up to 5 litres of water can be brought to the boil. Related articles RT 350 - How much water can the device heat up? TS 1001 - How deep must the immersion heater be immersed in the liquid (minimum and maximum)? TAUCHSIEDER ALL - Can liquid also be brought to the boil? MD 1000 - Is it possible to brown meat nicely? How can I contact customer service?