This generation of variable-speed pumps can internally sense how many valves are open or closed and adjust speed accordingly. Variable speed pumps have been around for years. As I mentioned in last ...

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.

Variable-speed options are abundant in HVAC and their impact has been felt industry-wide. Contractors and manufacturers alike have taken to these single- and two-stage alternatives as ways to enhance ...