The HZP ECO features a permanent magnet motor and a differential pressure control system that allows for continuous adjustment of the pump performance to current system conditions. Thanks to the AUTO function (factory setting), the pump can usually be put into operation directly without any further adjustments required. The energy consumption is significantly lower (up to 80%) compared to standard circulation pumps. In addition to the auto setting, various control modes are selectable, including automatic night reduction. The energy efficiency index (EEI) of this pump is already at 0.18, well below the requirements that will come into effect in 2015. It includes a custom-fit insulation shell and system plug for easy electrical connection.