Manual-J Load Calculations Required by State Code

Manual-J’s Required.
42 states have adopted codes equivalent to the 2009, 2012, 2015, or 2018 International Energy Conservation Codes (IECC).

As a result, 29 states require Manual-J load calculations* be performed to properly calculate heating and cooling loads for new residential construction (See Section 403.6 of 2009 IECC and Section 1401.3 of 2009 IRC). With Home Energy Partners Manual-J training you will be ready to comply with code requirements. Click the map below to find out what code is required in your state.

Completing Manual-J load calculations is not necessarily difficult, but without the proper tools and training it can be daunting. You can complete load calculations by hand, using long detailed worksheets involving lots of long formulas and math, or you can use powerful software designed to help you quickly and efficiently create accurate calculations. The software and calculations can then be used for Manual-D duct designs and Manual-S equipment sizing.

Our online, on-demand Manual-J training provides you with an in-depth look at the fundamentals of building science and how it affects load calculations, and then takes you step by step through the Wrightsoft Manual-J software module. With over 12 hours of instructional video and 6 practice load calculations with instructor aid, you should come out of the course ready to hit the ground running. With our class membership option, you can continue to have access to the forums and training videos after the class if you need support. If you prefer live training, we offer 2-day in-class training at locations across the country that will give you a crash course and get you up and running.

Manual-J and Manual-D are also required by ENERGY STAR Version 3. If you want to be a part of this program you must be able to accurately complete the load calculations, duct design, and the HVAC System Quality Installation Contractor Checklist.

So what if your state has not passed the 2009 or 2012 IECC? Besides being able to provide Manual-J for ENERGY STAR new homes, as a professional in the HVAC field, you can benefit from more accurate equipment sizing by reducing potential callbacks and saving money by purchasing smaller systems that require less ductwork. Wrightsoft also has a Sales Module that will allow you to create professional proposals for your sales presentations.

Regardless of where you live and work, understanding how to efficiently and accurately perform Manual-J load calculations will contribute to your success in the HVAC industry by ensuring that you stay compliant with your local code, are able to offer your services to ENERGY STAR builders, and can maintain a high level of professionalism with your clients.

Register now for our online, on-demand Manual-J training or one of our upcoming in-class trainings so that you can be sure that you are complying with your state energy code and improving you business image. Short on time? Do you have a need for load calculation right now? Contact The Energy Partners today about our Manual-J load calculation services. In addition to training, we provide fast and accurate load calculations, duct designs and equipment sizing services.

*States that Require Manual-J Load Calculations:

Alabama
California
Connecticut
Delaware
Florida
Georgia
Idaho
Illinois
Indiana
Iowa
Kentucky
Maryland
Massachusetts
Michigan
Montana
Nebraska
Nevada
New Hampshire
New Jersey
New Mexico
New York
North Carolina
Oklahoma
Oregon
Pennsylvania
Rhode Island
Vermont
Virginia
Washington
Washington DC