Variable speed pumps have been around for years. As I mentioned in last month’s article, I used the technology at my own home at the turn of the century. A control varied the speed of a pump in an ...

Variable-speed pump drive technology that matches pressure supply to demand is creating the ability for energy-efficient hydraulics to produce energy savings in the range of 30 percent to 80 percent.

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, ...