An HVAC system’s energy efficiency is only as good as the energy-engineering firm that monitors and upgrades it. Hemant Mehta’s WMGroup must be doing something right because he and his team have been ...

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.

An HVAC system’s energy efficiency is only as good as the engineering firm that monitors and upgrades it. Hemant Mehta’s WM Group must be doing something right because he and his team have been ...