Precise water circulation is designed and calculated to efficiently minimize heat lost in the heat exchange process. The efficiency is measured up to 92% to ensure resources will not vanish in the air.

8 Awe-inspiring functions are illustrated by a stylish backlight LED display and only 4 buttons needed to activate these functions.

By Vaillant development, this digital water sensor includes temperature sensor, water volume detector and adjustment function. With this 2,800-steps motor, stable and accurate water temperature can be generated to you t any given time.

As the pacemaker of domestic gas water heater, Vaillant always provides you the best German quality and the safe feeling of a strong brand over 140 years.

Whether is summer or winter, this dual-gas channel plus three-stages burning valve modulates gas consumption to as low as 17%.

With a touch a button, rotational speed will change automatically between 4,800 rpm and 2,100 rpm to further reduce power consumption and save additional cost.