A study released by the U.S. Department of Energy (DOE) confirms the M2G intelligent boiler control from Greffen Systems produces significant savings for heating buildings using hydronic boilers. The DOE’s “Building America Case Study,” which installed and monitored the controllers in Chicago, reported fuel savings up to 14 percent.
Redesigned and featuring 15:1 turndown for energy efficiency and low NOx emissions, the Benchmark 6000 (BMK6000) is a 6 million-Btuh condensing hydronic boiler. It has an operating efficiency of 92.5 percent. The unit measures 79 (h) by 34 (w) by 109 (d) inches.