Finally Fossil-Fuel-Free: Air-to-Water Heat Pump & Ventilation Retrofit - Self Study
About this course
Air-to-water heat pumps have generated a lot of excitement for their enormous retrofit potential. This case study details one home’s retrofit to an AWHP system, which was developed by hydronics experts to be simple and repeatable. The project encompassed distribution systems, domestic hot water and backup heat, as well as a ventilation system upgrade from exhaust-only to high-efficiency fresh air (balanced) ventilation. We’ll present full project costs, before/after breakdown of energy models/costs, details on the beyond-energy motivations and benefits gained by the homeowners, and we’ll share extensive data from this project’s comprehensive monitoring systems along with two other installations in Vermont. We’ll summarize lessons learned and the limitations and challenges in designing for air-to-water retrofittability. There will be ample time for lively Q&A.
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Learning Objectives
- Describe how air-to-water heat pumps are functioning in a climate as harsh as New England's
- Identify 5 key non-energy benefits that can help move the needle on HVAC retrofit projects
- Understand the basics of how to install an air-to-water heat pump with the benefit of an open-source design and detailed photographs
- Explain the key design features and options for low-temperature distribution, including how to set up a new home for near-seamless retrofittability in the future at minimal cost
Course outline
1 module • 4 assignments • 1:27 hours of video lectures
Module 1 • 2 assignments
Fossil-Fuel-Free at Last: Air-to-Water Heat Pump & Ventilation Retrofit
- Fossil-Fuel-Free at Last: Air-to-Water Heat Pump & Ventilation Retrofit (01:27:31 hours)
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Author
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Brian manages a team of Efficiency Vermont's residential energy consultants and works on a variety of energy efficiency initiatives at VEIC. He holds degrees from the University of British Columbia (MASc, Mechanical Engineering) and the University of Minnesota (BME, Mechanical Engineering). He is Passive House and LEED AP accredited, and currently serves as president of... Learn more
