ECR International filed an Application for Exception with the Department of Energy’s (DOE) Office of Hearings and Appeals (OHA) on September 6, 2007. The firm requests
continued relief from conducting low temperature tests on its ductless, multiple-zone (DMZ) heat pumps to determine the heat pumps’ heating seasonal performance factor
(HSPF), as 10 C.F.R. Part 430 requires. For the reasons set forth below, we have concluded that ECR International’s Application for Exception should be denied.