The Wilo-Star E 21 is a state-of-the-art wet-rotor circulator powered by an EC motor, offering high efficiency and exceptional performance in various applications such as heating, cooling, industrial circulation, solar and geothermal systems. This innovative circulator is equipped with a range of advanced features including differential temperature control, allowing for precise adjustments based on system demand to not only enhance efficiency but also maximize energy savings.

The Wilo-Star E 21 also features an auto mode that intelligently adapts to the system's requirements, ensuring optimal operation without the need for constant manual adjustments. With three HD modes for proportional control and four-speed settings, users have the flexibility to tailor the circulator's performance to meet specific needs. The inclusion of Set Point Heat and Cool Modes further enhances customization options, enabling users to achieve the desired temperature settings with ease.

Source: Wilo

In addition to its advanced functionality, the Wilo-Star E 21 prioritizes user convenience with its intuitive design. The circulator is equipped with an LED display and adjustment buttons, for easy set-up and changes. The circulator is also built to withstand demanding conditions, with a fluid temperature range of 2.2° C (36° F) to 110° C (230° F) and a maximum operating pressure of 10 bar (145 PSI). The durable construction, including a cast iron HT200 pump body, composite PA66 plus 30% GF impeller, and ceramic shaft, ensures extended service life and reliability in operation.

This new best-in-class circulator pump is engineered to enhance performance while simultaneously reducing energy consumption, making it an ideal choice for a wide range of heating and cooling applications.