We should not have gotten here! California Energy Commission's Energy Videos Center

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HVAC Videos

Up to 30% of all money spent on operating HVAC equipment is lost through duct leakage, with additional waste stemming from improper system design and installation. Title 24 Building Energy Efficiency Standards are intended to reduce these losses and lower energy bills, increase indoor air quality and improve occupant comfort, and enable a more stable power system for California. Learn how to meet the Title 24 requirements and minimize conditioned air loss through proper system design, duct sealing and testing.


Video of HVAC Overview

Overview

Home Energy Rating System (HERS) Rater Scott Johnson discusses some of the problem areas in duct installation. In this video, he also performs a smoke test to detect leakage.

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Video of Duct Sealing with Duct Tape

Duct Sealing with Duct Tape

Scott Remillong of Tyco Adhesives demonstrates techniques for sealing HVAC system ductwork using approved duct tape.

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Video of Proper sizing of A/C units and ducts

Proper sizing of A/C units and ducts

John Proctor, with Proctor Engineering, gives an overview of the steps needed to ensure proper A/C unit and duct sizing.

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Video of Proper installation of A/C units and airflow

Proper installation of A/C units and airflow

Approximately 50% of the money spent on A/C systems is due to inefficiencies in the installation process. John Proctor, engineer and HVAC consultant, outlines proper A/C installation procedures while highlighting steps needed to achieve optimum airflow.

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Video of HVAC Zoning for Comfort and Energy Savings

HVAC Zoning for Comfort and Energy Savings

Joe Coker, HERS Rater with Breeze Air Conditioning, explains the importance of HVAC zoning in homes.

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Video of HVAC and Building Pressures

HVAC and Building Pressures

Charlie Gohman of the Arizona Department of Commerce explains how properly designed and installed duct systems can prevent pressure imbalances in the house, leading to energy savings as well as a safer, more comfortable home.

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Video of Bad Ducts

Bad Ducts

Energy expert Steve Easley talks about leaky ductwork. Air leaks in ductwork result in a 20 to 30% reduction in a home's energy efficiency. The Title 24 Building Energy Efficiency Standards require that all ductwork be sealed when the heating or cooling system is replaced in a home. Sealed ducts improve energy efficiency as well as indoor air quality. Site inspectors should check for disconnected, poorly connected or poorly insulated ducts, as well as kinked or crushed ducts, ducts with acute angles that restrict air flow, and improperly supported ductwork.

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Video of HVAC Changeout

HVAC Changeout

As energy expert Steve Easley and Mazi Shirakh from the California Energy Commission explain, there are several significant changes in the 2008 Standards concerning HVAC changeouts. The 2008 Building Energy Standards have eliminated the TXV option. Now, refrigerant charge must be verified by a HERS rater, or provisions must be made for sensors or access holes to check the charge. This video also covers new requirements for air flow and fan watt draw in new space conditioning systems. These new requirements impact system replacement and new system installation in existing homes.

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