Energy Conservation Program for Certain Commercial and Industrial Equipment: Test Procedure for Commercial Water Heating Equipment

The U.S. Department of Energy (DOE) proposes to revise its test procedures for commercial water heaters, unfired hot water storage tanks, and hot water supply boilers (henceforth, ``commercial water heating (CWH) equipment'') established under the Energy Policy and Conservation Act of 1975 (EPCA), as amended. In this NOPR, DOE proposes several changes, including: Updating references of industry test standards to incorporate by reference the most recent versions of the industry standards; proposing modifications to the existing test methods for certain classes of CWH equipment; developing new test procedures for determining the efficiency of unfired hot water storage tanks, commercial heat pump water heaters, and flow-activated instantaneous water heaters; proposing clarifications on test set-up and settings for various classes of CWH equipment; revising the certification requirements for CWH equipment; and proposing associated implementing regulations including definitions. DOE announces a public meeting to receive comment on these proposed test procedure amendments, and it also welcomes written comments and data from the public on all aspects of this proposal.