by John Krigger | Apr 3, 2022
(0.5 CEU; 30 minutes) The noninvasive superheat test lets you estimate the superheat of an air conditioner or a heat pump operating in the summer. Noninvasive means that we don’t have to connect of refrigeration manifold and performing this test doesn’t...
by John Krigger | Apr 3, 2022
(0.9 CEU; 55 minutes) Naturally drafting combustion appliances often spill their combustion products and produce carbon monoxide. Worst-case depressurization testing is an accepted way to discover whether a particular heating appliance is spilling or producing CO...
by John Krigger | Apr 2, 2022
(0.9 CEU; 55 minutes) Human comfort is what we try to achieve in buildings with heating and cooling systems. This micro course explores how the human body responds to heating and cooling systems. Some HVAC systems provide adequate comfort and some don’t,...
by John Krigger | Apr 2, 2022
(0.5 CEU; 25 minutes) To pursue a low-cost cooling strategy, stop heat gain before it enters the home, and use ventilation and air movement whenever possible. This micro course gives you a summary of the options including: shade trees, window treatments, whole house...
by John Krigger | Apr 1, 2022
(0.5 CEU; 30 minutes) This 10-minute video breaks down the components of summer heat gain’s including solar gains, air leakage, internal gains, and heat transmission. Understanding how our environment heats our buildings during the summer is essential to creating good...
