John Siegenthaler, P.E.

John Siegenthaler, P.E., is a consulting engineer and principal of Appropriate Designs in Holland Patent, N.Y. His latest textbook “Heating With Renewable Energy,” will be released in January 2016 from Cengage Publishing. It shows how to use modern hydronics technology to create systems supplied by solar thermal, heat pump and biomass heat sources. Additional information is available at www.hydronicpros.com.

Beyond 20 years

Well-planned hydronic systems offer lasting value.

John Siegenthaler, P.E.

March 10, 2021

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Fifty years from now I doubt I will be predicting anything, and yet, hydronic heating, in some form, will hopefully still exist.

Keeping it simple

Hydronics doesn't have to be complex to be correct.

John Siegenthaler, P.E.

September 8, 2020

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Do you ever feel there are just too many pipes, circulators, controls and other gadgets in the hydronic systems you install?

12 comparisons between hydronic and VRF/VRV systems

The ‘Gold Standard’

John Siegenthaler, P.E.

December 31, 2019

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Hydronics technology has long been known for unsurpassed heating comfort.

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Modern Hydronics Done Right Volume 5

eBook

John Siegenthaler, P.E.

December 10, 2019

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We are proud to present this fifth and final edition in the "Siggy" eBook series specifically for the hydronics market. Brought to you by Plumbing & Mechanical, PM Engineer and Supply House Times, this FREE eBook is a collection of columns and articles from John Siegenthaler, P.E., a well-respected hydronics expert.

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Modern Hydronics Done Right Volume 4

eBook

John Siegenthaler, P.E.

September 13, 2019

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We are proud to present the fourth of five eBooks specifically for the hydronics market. Brought to you by Plumbing & Mechanical, PM Engineer and Supply House Times, this FREE eBook is a collection of columns and articles from John Siegenthaler, a well-respected hydronics expert.

There are differences between rules of thumb and precise calculations

It's not always 500

John Siegenthaler, P.E.

August 19, 2019

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Modern Hydronics Done Right Volume 3

eBook

John Siegenthaler, P.E.

June 6, 2019

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We are proud to present the third of five eBooks specifically for the hydronics and radiant heating/cooling market. Brought to you by Plumbing & Mechanical, PM Engineer and Supply House Times, this eBook is a collection of columns and articles from John Siegenthaler, the well-respected hydronics expert.

John Siegenthaler: What's not on your utility bill

John Siegenthaler, P.E.

April 15, 2019

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The measure of a heat pump’s heating performance is called coefficient of performance or COP. It’s the ratio of useful heat output, divided by required energy input, where both the output and input are expressed in the same physical units.

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Modern Hydronics Done Right Volume 2

eBook

John Siegenthaler, P.E.

December 7, 2018

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The second of five eBooks for the hydronics market is here! Brought to you by Plumbing & Mechanical, PM Engineer and Supply House Times, this eBook is a collection of columns and articles from John Siegenthaler, P.E., a well-respected hydronics expert and longtime columnist for PM, pme and Supply House Times.