Don't inject smoke through your Model 300 DucTester...there's a better solution!
Theatrical smoke is a very effective way to find leaks in a duct system. A quick check will point out smoke as it spills from pressurized leak locations. Leaks in attics and crawlspaces that can be hard-to-detect are no problem with this method. This type of detection is called theatrical for a reason - it is quite a sight to see for homeowners and builders.
Caution: theatrical smoke injected through the Model 300 test fan inlet may cause damage and void warranty. Risk increases with frequency. Instead, inject non-toxic chemical smoke into the flex-duct then reconnect the DucTester fan so it blows that smoke into the duct system. Watch the video below to see this method used with the
FEBB Annual Conference
November 3rd, Villas of Grand Cypress, Orlando, FL
WEBB Recertification Seminar
November 7th, Wisconsin Environmental Balancing Bureau, Wauwatosa, WI