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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

'Look Mom, No Cavitation!'

June 1, 2000

Call me weird, but one thing I always enjoy is standing in a mechanical room where a circulator is running so quietly that I’d have to put my ear on it to hear any sound.

John Siegenthaler, P.E.

June 1, 2000

Aside from the obvious problems caused by poor design or installation, there are several less conspicuous snags lying in wait for unsuspecting hydronics specialists.

John Siegenthaler, P.E.

June 1, 2000

This month’s column summarizes the sizing of a modern diaphragm-type expansion tank.

John Siegenthaler, P.E.

June 1, 2000

Solutions for flawed hydronic heating systems.

John Siegenthaler, P.E.

June 1, 2000

Now that I’ve picked on engineers a bit, let me say that NPSH is really a pretty simple concept.

John Siegenthaler, P.E.

June 1, 2000

Here are a few things I think will happen in the hydronic heating industry in the near future.