The development of the Minneapolis Duct Blaster® has revolutionized performance testing of forced air distribution systems for builders, HVAC contractors, and utility DSM programs. The Minneapolis Duct Blaster is a calibrated air flow measurement system designed to test and document the airtightness of forced air duct systems in both houses and light commercial buildings. The Duct Blaster fan is connected directly to the duct system in a house, typically at a central return, or at the air handler cabinet. With the remaining registers and grilles temporarily taped off, duct airtightness is measured by either pressurizing or depressurizing the duct system and precisely measuring the fan flow and duct pressure.
Duct airtightness measurements are used to diagnose and demonstrate leakage problems, estimate efficiency losses from duct leakage, and certify compliance with duct leakage standards such as California's Title 24 Building Energy Efficiency Standards.
Minneapolis Duct Blaster features:
The lightweight Duct Blaster fan weighs just 7 pounds, but delivers enough air flow (an amazing 1,500 CFM) to test the leakiest duct systems.
Quick and accurate airtightness measurements from 20 - 1,500 CFM.
Compatible for both pressurization and depressurization testing.
The Duct Blaster can be easily used in new construction applications where a Blower Door can't be used (e.g. before sheet rock is installed).
The Duct Blaster can also be used as a powered flow hood to accurately measure air flows through the air handler fan, registers and grilles, and exhaust fans.
Variable fan speed control (solid state).
Padded nylon carrying case with shoulder strap.
Minneapolis Duct Blaster Kit includes:
Duct Blaster Fan (110v only, contact manufacturer for purchase of 220v)
DG-700 Digital Pressure and Flow Gauge.
Three Flow Rings.
Twelve feet (3.7 m) of 10 in. (25 cm) diameter flex duct.
Heavy Duty Carrying Case.
Duct Blaster Training Video and Manual.
Static pressure probe.
Sample roll of 8” wide DuctMask™ Temporary Register Seal.