The company says the return on investment for the M2G can generally be seen within six to 24 months. “But savings extend beyond the fuel bill,” noted Salensky. “A boiler’s life is increased significantly because of the more effective control and subsequent reduced firing.”

Greffen said the M2G has been installed and tested by companies and governmental and educational institutions including Ford Motor Co., General Motors, Bell Helicopter, the U.S. Internal Revenue Service, Yahoo!, Texas A & M University, and Detroit Edison. In Europe, the M2G has been installed at over 5,000 sites by companies including the Royal Bank of Scotland, Lloyd’s TSB, and Britain’s National Health Service, among others.

According to Greffen Systems, the M2G is a small, easily-installed ALM controller that requires no calibration, works with existing building management control systems, and reduces energy consumption by minimizing boiler firing during periods of low heating load. The M2G’s microprocessor “learns” from the temperature change of the primary heating loop to detect real building heating requirements and dynamically manages the boiler to save energy during low-load conditions.

For more information, visit www.greffensys.com.

Publication date: 1/19/2015

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