The U.S. Department of Energy (DOE) reviewed the test procedure for commercial warm air furnaces (CWAFs) after a court remand regarding the thermal efficiency two (TE2) metric. The DOE determined that the industry test procedure for measuring energy efficiency during a typical use cycle, considering jacket losses and part-load operation, is inadequate. Consequently, the DOE reaffirmed its new test procedure, which accounts for these factors, ensuring that energy efficiency is accurately measured. This revised procedure will help provide clearer information for consumers and manufacturers when new energy standards are set.
Simple Explanation
The government checked the rules for testing the warmth and energy use of special big heaters and found the current way isn't good enough. They decided to use a better way that shows how these heaters really work, making it easier for everyone to know how much energy they use.