The Vaillant atmoMAG mini water heater offers reliable performance with instantaneous domestic hot water production of up to 14 litres per minute. Fuelled by natural gas and with a natural draught open chamber, this Low NOx Class 6 model is designed for indoor installation, especially in replacement contexts with branched flues. Practical in daily use with battery ignition and simple adjustment via two knobs, it combines energy efficiency and ease of installation.