by John Krigger | Jan 14, 2022
(6.0 CEUs) This course covers mainly the operation of furnaces, but also space heaters and hydronic boilers. The purpose of this course is to help you recognize the different types of gas heating appliances, to understand how they work, and to make simple decisions...
by John Krigger | Jan 14, 2022
(5.0 CEUs) This course explores the many aspects of duct energy efficiency, including these: duct air sealing, duct insulation, and airflow through ducts. The purpose of this course is to help you think about ducts holistically and to understand how ducts affect...
