grundfos upm3 hydra gps external pwm signal controlled solar boilers 3 Temperaturdifferenzregler The wood pellets are removed

The wood pellets are removed either by a suction pot or a screw conveyor

This makes it possible to heat domestic hot water and operate radiators or underfloor heating

Its universal applicability and easy installation make it ideal for both home and professional systems

Thanks to its high reliability and precise fit

The documentation also explicitly emphasizes the need for professional commissioning and user instruction

grundfos upm3 hydra gps external pwm signal controlled solar boilers 3 Temperaturdifferenzregler The wood pellets are removedSolar pump 20 8 130 PWM Hydra GPS II The Hydra GPS solar pump 20 8 130 PWM is an electronic and energy efficient pump with high efficiency. Designed for solar heating applications, it is controlled via an external PWM signal (stepless speed control), ensuring maximum energy yield. Its excellent price performance ratio makes it a popular replacement in many systems, such as the Grundfos UPM3 Solar 15 75. Advantages of the solar pump: EEI0. 21 developed