The newest generation variable-speed ECM smart circulator, ecocirc 20-18, provides a highly efficient product for both heating and cooling as well as potable water.

An increasing emphasis on variable speed pumping as a means to save energy in commercial buildings has provided engineers with many paths to efficient hydronic system design.

Beginning Jan. 27, 2020, clean water pumps sold in the United States must achieve a minimum energy rating of 1.0 as outlined in the Energy Conservation Standards for Pumps established by the U.S. Department of Energy (DOE) and adopted by Natural Resources Canada.

Lisa Riles, director, global residential Americas, CBS and HVAC, Xylem, met with Engineered Systems’ editor-in-chief, Herb Woerpel, to discuss Xylem’s Watermark program, some recent industry trends, and more.

Since its inception in 1954, more than 62,000 engineers, contractors, and other hydronic HVAC and plumbing professionals have been educated at the Little Red School House in Morton Grove, Illinois.

Editor’s Note: Every successful project starts with a framework. A vision statement. A blueprint.

As the demand for electrical power increases, distribution systems are expanded to accommodate the increased demand. Stiffened transmission systems, increased substation capacity, and added on-site and distributed generation all contribute to increases in available fault currents.