REM/Rate™ 2025 starts off with a 14-day trial mode. The trial mode has all the features of a registered version of REM/Rate™, except that the results are sample data based off of the actual data and not to be taken as accurate and none of the reports can be printed. After 14 days, the program needs to be registered. Warnings will be generated as the software gets close to expiring. Any time during the trial period you may activate the software by purchasing a license.

2025 Hotfix 36 Late October 2026

  • Bug Fixes and Stability Enhancements:
    • Fixed the hourly engine export so wall construction type, wall emittance, door orientation, foundation wall type and slab thickness are taken from the model instead of defaults. Mass-wall and block-foundation homes rated with the hourly engine will see small score changes; wood-frame homes change slightly because of the emittance correction.
    • Fixed an issue in the HVAC Grading record where the graded total duct leakage I or II on that record was set, and left the design or measured blower fan airflow blank, would cause the system to erroneously give a 25% airflow bonus instead of a 25% penalty.
    • Fixed an issue that could incorrectly calculate infiltration for some attached dwelling units at the 0.30 CFM50/ft² compartmentalization threshold, affecting HERS/ERI results.
    • Fixed an issue that could incorrectly model infiltration in certain multifamily dwelling units with exhaust-only ventilation, affecting HERS/ERI results.
    • Fixed typos and removed IECC terminology from ECCCNYS 2025 reports
    • Fixed a crash in the ECCCNYS 2025 TC Compliance report

First released May 2025

Instructions:

  1. Click the button to download the REM/Rate™ 2025 installer to your desktop.

  2. When the download is done, right click the RemRateInstaller2025.exe and select "Run as administrator..." (You must have administrator permissions to run the installer.)

These files will install the complete application. All versions start with a free trial. The trial mode has all the features of a registered version of REM/Rate™, except that none of the reports can be printed. After the trial ends, the program needs to be registered. Warnings will be generated as the software gets close to expiring. Any time during the trial period you may activate the software by purchasing a license.

2023 Hotfix 2035 October 2026

  • New Features:
    • New Trial Registration dialog
    • Export to Weatherization Assistance Program
  • Bug Fixes and Stability Enhancements:
    • Fixed an issue in the parsing of certain UDRH files that cause an error in the reference building

First released May 2024

Instructions:

  • Click the button to download the REM/Rate™ 2023 installer to your desktop.

  • When the download is complete, run the installer by double-clicking the file if running Windows XP. For newer Operating Systems, right-click the file and select "Run as administrator..."

These files will install the complete application. All versions start with a free trial. The trial mode has all the features of a registered version of REM/Rate™, except that none of the reports can be printed. After the trial ends, the program needs to be registered. Warnings will be generated as the software gets close to expiring. Any time during the trial period you may activate the software by purchasing a license.

16.3.4 Hotfix 1034 October 2026

  • New Features:
    • New Trial Registration dialog
  • Bug Fixes and Stability Enhancements:
    • Fixed an issue where the Mechanical Vent efficiency of 0 caused export to Weatherization Assistance Program to fail with error
    • Minor fixes to Weatherization Assistance Program export

First released August 2022

Instructions:

  • Click the button to download the REM/Rate™ 16.3.4 installer to your desktop.

  • When the download is complete, run the installer by double-clicking the file if running Windows XP. For newer Operating Systems, right-click the file and select "Run as administrator..."

License REM/Rate™ 2025

To purchase a REM/Rate™ Desktop Software license, please email us

REM/Rate™ is available to be licensed annually to RESNET® accredited HERS® Providers. For additional licensing information, please contact [email protected].

REM/Rate™ Lite is for non-RESNET® providers is available and does not produce HERS index but ERI index is available. Climate data is available for cities and towns throughout North America.

REM/Rate™ 2025 is HourlyHERS and allows you to run either Std 301-2014, Std 301-2019 or 301-2022.

What's New

  • The latest NREL engine.
  • In addition 301-2022 REM/Rate™ 2025 includes the ability to incorporate documents and photos into the building file.
  • New inputs for CFIS based on 301-2022 have been added.
  • DHW has had UEF added.
  • New eaves inputs as well as calculations for the ceiling insulation factor based on eaves impact on insulation based on 301-2022.
  • Numerous internal fixes that improve stability and allow for planned enhancements within the REM/Rate™ 2025 life cycle.

The ENERGY STAR® name and mark are registered trademarks owned by the U.S. Environmental Protection Agency (EPA).
LEED® is an acronym for Leadership in Energy and Environmental Design™. LEED® and its related logo, is a registered trademark owned by the U.S. Green Building Council® and is used with permission.
HERS® is an acronym for the Home Energy Rating System, a registered trademark of the Residential Energy Services Network.
RESNET® is an acronym for Residential Energy Services Network®, Copyright 2010 Home Energy Service Pro, LLC - All Rights Reserved.
Windows® - Microsoft, Encarta, MSN, and Windows are either registered trademarks or trademarks of Microsoft Corporation in the United States and/or other countries.

About: REM/Rate™ and REM/Design™ are trademarks of REM/Rate LLC.