Comprehensive nutrition resource for Sonic Chocolate Shake - Regular. Learn about the number of calories and nutritional and diet information for Sonic Chocolate Shake - Regular. This is part of our comprehensive database of 40,000 foods including foods from hundreds of popular restaurants and thousands of brands.
Duct BlasterÂ®. 1  A Duct Blaster is used to directly pressure test the duct system for air leaks, much the same way a plumber pressure tests water pipes for leaks. 2  The Duct Blaster fan is first connected to the duct system at the air handler cabinet, or a return grille. After temporarily sealing all remaining registers and grills, the Duct Blaster fan is turned on to force air through all.
A: A Duct leakage HERS test is a pressure test to measure any air loss in your duct system. The HERS Rater seals off the duct system to pressurize it using special duct testing equipment that measures the input and loss. The Energy Department found that the average homes duct system leaks approximately 30% and made duct leakage testing mandatory Oct 2005.