Lowering Water Temperature in Existing Hydronic Systems

As the North American market for high-efficiency boilers and renewable energy heat sources continues to expand, there are increasing needs for hydronic delivery systems that complement those heat sources. In new construction situations, there are ample methods and materials for creating low-temperature hydronic heating distribution systems. However, tens of thousands of existing buildings have “high-temperature” distribution systems that severely limit the potential of these contemporary heat sources. John Siegenthaler, P.E. will present techniques to evaluate those existing systems for potential operation at significantly lower water temperatures. He will also show practical methods of modifying them for low-temperature operation and expanded capabilities such as room-by-room zoning.

You'll learn:

→ Is it practical to operate fin-tube baseboard at 120 ºF water temperature?
→ Should you add heat emitters to an existing series baseboard circuit?
→ What needs to be checked prior to using older cast-iron radiators in a modified hydronic system?
→ How can an older single zone distribution system be converted to room-by-room zoning?
→ Do all supplemental heat emitters added to an existing system have to be the same type?

A seasoned industry leader and passionate teacher, John shares his over 35 years’ experience in the understanding and proper application of water-based engineering principles with our audience. He is the principal of Appropriate Designs and a regular contributor to industry publications.

Видео Lowering Water Temperature in Existing Hydronic Systems канала Caleffi Hydronic Solutions