Articles by John Siegenthaler, P.E.

Spin Control

By John Siegenthaler, P.E.
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Last fall the PM columnists were all challenged to write about their “secret life” for their January columns. The idea was to write about something they do or enjoy that's a bit outside their normal monthly specialty.
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Harvey's Horseshoe

By John Siegenthaler, P.E.
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If you attended the RPA RadFest East this past October, you may remember the piping schematic in Figure 1 as an example of what not to do.
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Zoned Out<br>John Siegenthaler, PE

By John Siegenthaler, P.E.
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You don't need dozens of control boxes and miles of thermostat or sensor cable to provide appropriate zoning.
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The Other Efficiency<br>John Siegenthaler, PE

By John Siegenthaler, P.E.
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It's time to stop 'overpumping' our hydronic systems.
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Bad Science<br>John Siegenthaler, PE

By John Siegenthaler, P.E.
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Technology marches onward.
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Lines Of Communication<br>John Siegenthaler, PE

By John Siegenthaler, P.E.
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Networked controls will soon be the norm in hydronics.
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Extended Thinking<br>John Siegenthaler, PE

By John Siegenthaler, P.E.
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Hydronic radiant heating installations frequently present opportunities for refinement.
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Equivalent Thinking<br>John Siegenthaler, PE

By John Siegenthaler, P.E.
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Modern hydronic systems should be as 'hydraulically efficient' as they are thermally efficient.
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Dueling Circulators<br>John Siegenthaler, PE

By John Siegenthaler, P.E.
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Big surprises await those who use high flow-resistant, low-mass hardware into a traditional header-type piping layout.
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In My Dreams ...<br>John Siegenthaler, PE

By John Siegenthaler, P.E.
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Products the North American hydronic heating industry needs.
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2014 Truck of the Month

PM has featured so many great plumbing service trucks! See plenty of them here in our Truck Of The Month Archives page. Are you proud of your truck? Go to our Truck of the Month page to find out how your service truck could be chosen!

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Plumbing and Mechanical

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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2014 National Plumbing & HVAC Estimator

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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