by John Krigger | May 6, 2022
(0.5 CEUs; 30 minutes) Wall insulation is more challenging than floor or ceiling insulation because walls are vertical and experience the kind of chimney effect. This means they are more likely to have convection currents that reduce their thermal resistance, compared...
by John Krigger | Feb 20, 2022
(2.0 CEUs) Learn about the relationship between temperature and heat. Study the difference between sensible heat and latent heat. Discover how substances release heat and absorbed heat when there state changes from solid to liquid to gas. Understand how to calculate...
by John Krigger | Feb 9, 2022
(2.0 CEUs) The Weatherization Assistance Program (WAP) is a federal program created by Congress in 1979. Since then, WAP has weatherized millions of low income homes. WAP is managed by DOE on the federal level, state governments on the state level, and local...
by John Krigger | Jan 21, 2022
(1.5 CEUs) The pressure pan measures duct pressures during a blower door test. If you measure pressure at a duct register during a blower door test, that indicates that outdoor air is leaking into or out of the building. Pressure-pan testing isn’t a quantitative...
by John Krigger | Jan 21, 2022
(3.0 CEUs) The purpose of this lesson is to describe the exact process of conducting a blower door test. There are many considerations and issues to understand. Building-energy specialists can set up blower door equipment in a variety of incorrect ways. This lesson...
