High-Efficiency, Variable-Speed Pumps from Wilo and Grundfos

Pumping uses a tremendous amount of electricity. In looking at efficiency of hydronic heating systems, we have long focused on the fuel used to heat the water being circulated, without paying much attention to pumping energy. Fortunately, that’s beginning to change.

Two of the world’s leading pump manufacturers, Wilo (pronounced “veelo”) from Germany and Grundfos from Denmark, have introduced to North America advanced, high-efficiency, variable-speed, ”smart” pumps that can reduce pumping energy use by over 75%. Wilo offers the Stratos for commercial applications and the Stratos ECO for residential applications. Grundfos offers the Magna line for commercial applications and the Alpha line for residential applications.