Posted on May 23, 2012 by Carl Seville, GBA Advisor
Some days I like my work, and some days I don’t, but I guess that’s just the way the world is. This love/hate relationship really rears its ugly head when I have to go out and do blower door and Duct BlasterCalibrated air-flow measurement system developed to test the airtightness of forced-air duct systems. All outlets for the duct system, except for the one attached to the duct blaster, are sealed off and the system is either pressurized or depressurized; the work needed by the fan to maintain a given pressure difference provides a measure of duct leakage. testing on homes. It’s not one of my favorite things to do, but if the weather’s nice and the drive’s not to far, it can end up being a good, and reasonably profitable, day.