ENERGY STAR for Homes Version 2 Guidelines

Insulation requirements, HVAC sizing best practices, and key ENERGY STAR qualified product criteria for both paths are explained further in the reference codes and standards PDF (79KB).

Policy Changes and Clarifications

Domestic Hot Water Savings

  • Volumetric hot water savings PDF (146KB) – EPA provides guidance for accounting for energy savings from low–flow showerheads, horizontal–axis washing machines, demand controlled pumping systems, and other water–saving technologies.
  • Waste water heat recovery PDF (125KB) – EPA provides guidance for accounting for energy savings from the installation of waste water heat.

ENERGY STAR Qualified Products

Regional Guidance

  • Evaporative coolers PDF (83KB) – EPA provides guidance for modeling evaporative coolers in New Mexico.
  • Florida interim guidelines – EPA has developed interim guidelines for Florida in response to its recently adopted advanced energy code. The new Florida guidelines apply to all homes permitted on or after June 1, 2009.
  • South Texas BOP PDF (42KB) – EPA has updated the Builder Option Package for South Texas. In the referenced counties, the South Texas BOP, National BOP, or National Performance Path may be used to qualify a home.

Sector–Specific Guidance

  • Existing homes – EPA provides clarification on qualifying existing homes for the ENERGY STAR with consideration given to application of the Thermal Bypass Checklist.
  • Multifamily homes – EPA provides guidance for qualifying attached homes, including condominiums, apartments, townhomes, duplexes, and mixed–use structures.

Thermal Bypass Checklist

  • Electronic Thermal Bypass Checklist – EPA has posted new versions of the Thermal Bypass Checklist in English and Spanish that can be completed electronically.
  • Thermal Bypass Checklist update – EPA cancels the requirement that insulation in floors between conditioned and exterior spaces be aligned with both the top– and bottom–side air barriers. EPA also incorporates additional guidance in the TBC to ensure top–side alignment.
  • Use of Infrared Thermography – EPA provides guidance on using IR thermography to verify portions of the Thermal Bypass Inspection Checklist.