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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

Over-Looped

September 20, 2009

Circulators are experiencing overheating issues. There’s also heat getting into zones when that heat is not needed.

John Siegenthaler, P.E.

September 1, 2009

Not from the boiler, but from the point of no pressure change.

John Siegenthaler, P.E.

August 1, 2009

Freeze protection without antifreeze.

John Siegenthaler, P.E.

August 1, 2009

When it comes to hydronic headers, short and fat is good!

John Siegenthaler, P.E.

July 21, 2009

In some systems, outdoor reset control can vary the supply water temperature from a relatively high design temperature down to just above room temperature.

John Siegenthaler, P.E.

July 1, 2009

A critical notion if hydronic technology is to maintain a leading role in residential construction.

John Siegenthaler, P.E.

June 19, 2009

Eager to keep up with new technology, an installer decides to install a hydraulic separator between a boiler and distribution system.

John Siegenthaler, P.E.

June 2, 2009

Was my heating system ‘green’ 29 years ago? Judge for yourself…

John Siegenthaler, P.E.

May 20, 2009

To say this system is a piping aberration is going easy on it.