The Vaillant atmoMAG mini water heater offers reliable performance thanks to its instantaneous production of domestic hot water at up to 14 liters per minute. Powered by natural gas and with an open chamber with natural draft, this Low NOx Class 6 model is designed for indoor installation, especially in replacement contexts with branched collective pipes. Practical for everyday use with battery ignition and simple adjustment via two knobs, it combines energy efficiency and ease of installation.