Articles by John Siegenthaler, P.E.

Wall Warming

By John Siegenthaler, P.E.
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If you’re like me the first thing you think of when you hear the words “hydronic radiant heating” is a floor.
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'Look Mom, No Cavitation!'

By John Siegenthaler, P.E.
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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.
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Hampered Hydronics

By John Siegenthaler, P.E.
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Aside from the obvious problems caused by poor design or installation, there are several less conspicuous snags lying in wait for unsuspecting hydronics specialists.
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Expanded Thinking

By John Siegenthaler, P.E.
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This month’s column summarizes the sizing of a modern diaphragm-type expansion tank.
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Righting Some Wrongs

By John Siegenthaler, P.E.
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Solutions for flawed hydronic heating systems.
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NPSH: Not Pumping So Hot

By John Siegenthaler, P.E.
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Now that I’ve picked on engineers a bit, let me say that NPSH is really a pretty simple concept.
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What's to Come of Hydronic Heating ... OR At Least What I Hope For

By John Siegenthaler, P.E.
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Here are a few things I think will happen in the hydronic heating industry in the near future.
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Mixing Wood And Water

By John Siegenthaler, P.E.
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Burning wood for home heating is a way of life rather than just a fuel choice.
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Study Hall

By John Siegenthaler, P.E.
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A new office provides a testing ground for new hydronic heating methods.
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Diversionary Designs

By John Siegenthaler, P.E.
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The December 1997 Hydronics Workshop column showed several ways of using diverter tees in hydronic systems.
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2014 August

2014 August

In the August issue of PM, read about the continued construction and renovations being made to hotels and restaurants. Find out the focus of this year's ISH China show will be, who made this month's Truck of the Month and read what Elkay has to say about their commercial construction expansion. Also, read the latest news and discover the newest products being used by professionals in the plumbing and mechanical industry.
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Every plumbing and HVAC estimator can use the cost estimates in this practical manual!

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Truck of the Month

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