Commercial Water Heating Equipment Test Procedure

February 21st 2014

On February 21, 2014 the U.S. Department of Energy (DOE) issued a pre-publication Federal Register request for information regarding test procedures for commercial water heaters, hot water supply boilers, and unfired hot water storage tanks. The issues outlined in this document mainly concern updating the industry test standardsthat are currently incorporated by reference to the most recent versions, potential alternative methods for determining the efficiency of unfired storage tanks, potential changes to the method for setting the thermostat, potential clarifications in the thermal efficiency test method, and the potential inclusion of a test method for commercial heat pump water heaters (HPWH). DOE anticipates that these issues (as well as any others which are identified during the course of this rulemaking) may lead to proposed test procedure amendments in a subsequent notice of proposed rulemaking (NOPR).