Fan Watt Draw (FWD)


Fan Watt Draw (FWD)

Take Out The Guess Work With a Fan Watt Draw Test

Fan Watt Draw required for new installations or any modification that requires over 75% of the accessible duct system to be replaced. This relatively simple and straightforward test determines how many watts your fan uses to power the system. We then take the total watts used and divide it by the total measured airflow to determine precisely how much energy it takes to run the fan. This can help identify problems associated with poor efficiencies such as dirty air filter, clogged coil, or restricted airflow in the system.

Our Relevant Certifications

  • Cheers – Alterations, New Construction
  • CalCERTS – Alterations, New Construction
  • Building Performance Institute – Building Analyst Professional
  • Environmental Protection Agency (EPA) – Refrigerant Handling Certification

Additional Information About Fan Watt Draw Tests

Any homeowner who has recently done a mechanical changeout in their home needs a cooling coil airflow test. 

This test is required anytime a mechanical changeout has been performed. This requirement applies to all climate zones in California.

The main purpose of an FWD test is to determine if system is drawing too much or not enough wattage. 

For an FWD test we use a plugin watt meter. 

Our Title 24 HERS Testing Certifications

Here are some helpful links related to HERS. If you can’t find what you’re looking for, reach out to us, we’re here to help.

Energy code Ace is a simplified website that helps us navigate through the complicated process of Title 24 part 6.

The Energy Code Ace suite of tools is designed to help you identify the forms, installation techniques and standards relevant to building projects in California.

Energy Code Ace Training Courses target a wide range of “hot topic” measures and audience groups, and are provided in a variety of formats.

Energy code Ace Resources provides resources to help facilitate effective implementation of California’s building and appliance energy efficiency standards.

The California Energy Commission plays a critical role in creating the energy system of the future – one that is clean, is modern, and ensures the fifth largest economy in the world continues to thrive.

Here is where you can find current, past and future standards for both residential and commercial buildings. has excellent resources when it comes to saving energy and money while creating building comfort.