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 ...

In a previous article A New Age In North American Hydronics I promised that we would venture into the word of light commercial pump sizing using variable speed pumps. How many times have we been ...

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 ...

A failing pool pump isn’t just noisy — it can quietly damage your entire system. In this video, I unbox and install a new Black & Decker variable speed pump and show what’s involved in upgrading ...

Variable speed drives are transforming modern irrigation by shifting control from valves to pump speed. Instead of running motors at full capacity and throttling flow, the drives adjust motor speed to ...