John Tooley said, “Air is like crooked rivers, crooked people, teenagers, and cheap labor. It always seeks the path of least resistance.” He didn’t say that Angry air is Noisy air. Air doesn’t like being forced through corrugated, flexible ducting, pushed around corners, and made to force open dampers. It resists being made to perform in a way that it doesn’t want to. It takes … Continue reading Angry Air!
Infiltration and ex-filtration relate to convective air movement. Infiltration is uncontrolled air leaking in and ex-filtration, logically, is uncontrolled air leaking out. How and where it leaks in has a lot to do with the pressures in the house. (Remember, high pressure moves to low pressure.) If the pressure is higher in the house than it is outside, air will move out of the house. … Continue reading Homeowner’s Energy Workbook – Part 6 (Definitions)
There is a problem solving technique called synectics. It refers to problem solving by analogy. It is a technique that can be amazingly effective when trying to visualize a complex situation such as the air moving through a pipe or duct. In my classes, I try to get the participants to imagine themselves as an air molecule being tossed around by a fan and thrown … Continue reading Imagine Yourself as an Air Molecule
