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Blog Title: Can a fog machine be used to test ducts?

Main Que: Can a fog machine be used to test ducts?

  • Category:
  • Query By: Joel Nelson (Norfolk, VA)
  • Date: 09/13/2016

Answer: Yes, it can. You have to close all the registers with tapes. The duct is pressurized. Then a fog machine is introduced in the ducts, aiming the fog nozzle at the fan blades, without letting the fog get drawn into the vent holes in the motor. You have to watch for where the fog pours out. The site where it pours out is a site of leakage.

  • Replied By: Dennis J. (Cleveland, OH)
  • Replied Date: 09/17/2016