SEPTEMBER 2018
Small Circulator Pumps with Automated Control

Small circulator pumps propel fluid through closed-loop heating and cooling systems to regulate air or water temperature. Researchers from the National Renewable Energy Laboratory (NREL) evaluated the technology in two common applications at the Denver Federal Center, a domestic hot water recirculation system and an air handler unit . They found that the pumps reduced energy use 26% to 96%, with payback of less than 6 years.


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