DWHR HERS Index Score Credit Calculation Procedure
Until such time that DWHR system calculations have been implemented in RESNET-accredited
HERS Software Tools, Certified Raters and their Quality Assurance Providers may use the following
procedures to determine the HERS Index score credit for DWHR systems meeting the Minimum
Requirements of this IDR.
Results data from a RESNET-accredited HERS Software Tool that does not contain DWHR
calculations shall be used as input to the RESNET-approved DWHR HERS Credit Calculation Tool
to determine the HERS Index score credit for DWHR systems.