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John Siegenthaler, P.E.

John Siegenthaler, P.E., is a consulting engineer and principal of Appropriate Designs in Holland Patent, New York. In partnership with HeatSpring, he has developed several online courses that provide in-depth, design-level training in modern hydronics systems, air-to-water heat pumps and biomass boiler systems. Additional information and resources for hydronic system design are available on Siegenthaler’s website, www.hydronicpros.com.

Articles

ARTICLES

It represents the manufacturer’s recommendation for installing a two-zone system.

Following instructions for installing a two-zone system

The Glitch & The Fix, September 2016

John Siegenthaler, P.E.

November 17, 2016

A schematic, very similar to the one below, appears in a manufacturer’s installation manual. It represents the manufacturer’s recommendation for installing a two-zone system. Can you identify at least five things that could be changed to improve this system?

When and how to use reverse return piping

In many hydronic systems, there’s a need to divide the overall system flow into equal streams that pass through several identical components.

John Siegenthaler, P.E.

November 16, 2016

When — and when not — to use reverse return piping.

Options for achieving hydraulic seperation between circulators

Keeping the peace.

John Siegenthaler, P.E.

October 5, 2016

Twenty years ago, the contemporary approach to prevent interference between simultaneously operating circulators in a hydronic system was primary/secondary piping.