Every month, join us for in-depth training and discussion on application and design for modern hydronics technology coupled with geothermal heat pumps.
Hosted by John Seigenthaler

Hydronic Deep Dive: Tubing Depth and Performance (May, 22 • 12-1pm CDT)
When tubing is installed in a concrete slab, its installation depth significantly affects the performance of that heated slab. There’s only one chance to get this step right, so in this webinar, John Siegenthaler will address the best practices for ensuring the best performance in your slab installed hydronic systems.
- How is the relationship between tubing depth and water temperature determined?
- How much can water temperature be decreased with tubing at the center – rather than at the bottom – of the slab?
- Methods for controlling tubing depth.
- How much does tubing depth potentially affect seasonal COP?
Upcoming Presenters

John Seigenthaler, P.E.
John has over 40 years of experience designing modern hydronic systems. He’s a hall-of-fame member of the Radiant Panel Association and has presented at hydronic and radiant heating conferences worldwide. John is the author of two textbooks: Modern Hydronic Heating, 4th Edition, and Heating with Renewable Energy.
Who Is The Modern Hydronics Webinar For?
Installers and Techs
Stay up to date on the latest equipment, design trends, and installation options. Grow profitability with the market.
Engineers
Hydronics with heat pumps make excellent renewable options with excellent efficiency. Learn about applications and design details.
Utilities & Energy Planners
Utilities are increasingly incentivizing geothermal heat pumps. We’ll address this as well as ways to decarbonize existing hydronic systems.
Anyone Interested
Hydronics aren’t just an antiquated heating technology. Learn how modern hydronics marry ultimate comfort with ultimate efficiency.
Attend Live
Hydronic Deep Dive: Tubing Depth and Performance
Thursday May 22, 2025
12–1pm (CDT)
View Previous Webinars
10 Design & Installation Issues to Avoid
April 15, 2025
The Heat Pump That Changes Everything
March 20, 2025
Reduced Temp in Legacy Hydronics
February 20, 2025
Direct to Load Piping
January 16, 2025
Low Temperature Heat Emitters
December 12, 2024
New Air-to-Water Tech
November 14, 2024
Small-Scale Water Coolers
October 17, 2024