In this episode of Renewing Homes, I sit down with Michael Ridler, Stephen Magneron, and Fellipe Falluh to explore where hydronic systems fit within residential retrofits. We discuss hydronic heating and cooling, distribution methods, air-to-water heat pumps, thermal storage, zoning, and how hydronics compare to conventional forced-air systems.

The conversation also examines the role hydronics could play in an increasingly electrified future. From demand-side management and peak load reduction to opportunities for reusing existing infrastructure, we explore both the benefits and limitations of hydronic systems in retrofit applications.

As with most retrofit decisions, there is no one-size-fits-all answer. The right solution depends on the home, the homeowner's goals, and the challenges the project is trying to solve.

• Hydronic systems can provide heating and cooling through radiant floors, panel radiators, fan coils, and chilled water systems.
• Existing hydronic distribution systems may offer a pathway to electrification without replacing the entire heating system.
• Thermal storage can help shift energy use and may become increasingly valuable as electrification expands.
• Hydronic systems can provide advantages in comfort, zoning, and quiet operation.
• Converting a forced-air home to hydronics is possible, but not always practical.

Whether you're a homeowner, contractor, designer, or energy advisor, this episode provides a practical look at the opportunities and challenges of hydronic heating in residential retrofits.

00:00 Introduction to Hydronics and Participants

03:21 Understanding Hydronic Heating Systems

05:56 Components of Hydronic Systems and Retrofitting

08:53 Peak Demand and Energy Efficiency

11:49 Utility Incentives and Consumer Choices

15:49 Barriers to Utility Adoption of Innovative Systems

18:39 Connecting Industry Insights and Innovations

19:34 Integrating Hydronic Systems into Projects

23:30 Resilience and Thermal Storage in Hydronics

27:18 The Power of Ductless Systems

30:55 Innovative Heating Solutions for Multi-Unit Buildings

35:46 Retrofitting Forced Air Systems to Hydronic Heating

43:05 The Benefits of Hydronic Heating Systems

50:20 Challenges and Opportunities in Hydronic System Installation

54:27 Closing

Eden Energy Equipment

HomeSol Building Solutions

Retrofit Construction

Eden Energy YouTube Channel - Learn more about hydronic systems:

https://www.youtube.com/@EdenEnergyEquipment

Building Science Podcast - Episodes Discussing Hydronic Heating:

Perspectives on Hydronics in the Real World with Robert Bean and Lance MacNevin

Hydronics: The OG HVAC - Part 1

Hydronics: The OG HVAC - Part 2