At the end of last month’s column (Retrofit variable speed pump considerations, Part 1), I promised that we would venture into the world of sizing retrofit circulators for light commercial projects ...

LONG BEACH, Calif. - Pumps are responsible for a significant part of the world’s electrical energy consumption, but their impact can be by using variable-speed pump control, especially in hydronic ...

As the cost of components and pumps becomes more affordable, variable speed pumps are being used to increase the efficiency and reliability of water distribution systems in multi-story buildings.

Chris Parsloe argues that a modular approach to system design helps exploit the energy saving potential of variable speed pumps In the shadows cast by Part L of the new Building Regulations and the ...