Deep Energy Retrofits is one of Heatspring’s top-rated classes, receiving a 9.5 out of 10 average rating by class participants. That will come as no surprise to anyone who has heard instructor, Marc Rosenbaum, speak. His comprehensive knowledge, practical attitude and easy demeanor make his classes useful and fun.

Automation has improved this class even more. Hand-graded assignments have been replaced with automated quizzes. Instead of scheduled sessions, the course is now offered on-demand, so you can take it at your own pace. Once you enroll in the course you have up to one full year to complete the material and earn your certificate of completion and continuing education credits. These changes have allowed Heatspring to reduce the course fee by 60%. This drastically improves both cost and availability for this course for our students. By taking Deep Energy Retrofits (DER) you will learn:

  • How to assess if a house is a good candidate for a DER
  • How energy is used in most houses, and how DERs change that
  • How to identify typical deficiencies of existing homes and how a DER addresses them
  • How to understand heat flow, moisture flow, vapor retarders, and how to perform a simple heat loss calculation
  • How to fashion the building blocks of a DER—air tightening, foundations, walls, windows, roofs—and the range of effective approaches
  • How to select the most efficient heating, cooling, ventilation, and domestic hot water technologies for DERs
  • Key lessons and case studies of successful DERs

You can get a taste of Marc’s great teaching style with his free short courses, Deep Energy Retrofit Case Study and Introduction to Zero Net Energy Homes.