At the end of last month's column (November, p. 40), I promised that we would look at the bottom line results of retrofitting variable speed pumps on a sample project. As I explained previously, for ...

GREENVILLE, Ill. — Enertech Global, a manufacturer of ground-source and air-to-water heat pumps, has launched the WV, a variable-speed hydronic heat pump that the company says is engineered for ...

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.

The Malco Group Introduces New Aspen Mini Pumps with First-to-Market Intelligent Capacitance Sensing and Variable Speed Technology ...

There’s a debate among commercial and industrial hydronic system designers: how best to refine and enhance pumping and system efficiency to precisely match output to load (need). Decades ago, ...