Articles by John Siegenthaler, P.E.

Baseboard makeover

By John Siegenthaler, P.E.
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A modern approach to a traditional means of hydronic heating.
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Coil envy

By John Siegenthaler, P.E.
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Why don’t North American indirect tanks have larger heat exchangers?
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Transitions, Part 2

By John Siegenthaler, P.E.
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How to extract more heat from a storage tank.
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Tilting at collectors

By John Siegenthaler, P.E.
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Mounting solar panels at the proper angle is critical in maximizing system performance.
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Transitions, Part 1

By John Siegenthaler, P.E.
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Using wood-fired heat sources in conjunction with conventional fuel.
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Pavement To Pool

By John Siegenthaler, P.E.
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A possible operating mode for some hydronic systems.
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Retirement Party

By John Siegenthaler, P.E.
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After 30 years, it was time for a solar refresh.
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Smart Balancing - Part 2

By John Siegenthaler, P.E.
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The proper application of pressure-independent balancing valves.
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Smart Balancing - Part 1

By John Siegenthaler, P.E.
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An introduction to pressure-independent balancing valves.
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Lowered Expectations

The future of hydronics is low water temperature.
By John Siegenthaler, P.E.
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The future of hydronics is low water temperature.
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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!

9/16/14 9:00 am PDT

Free Webinar: Acoustical Isolation

HOLDRITE will be hosting a free webinar for Acoustical Isolation on Tuesday, Sept. 16, 2014.

Plumbing and Mechanical

July 2014

2014 July

In the July issue of PM Magazine, read about the steps the president of MacGregor Plumbing is taking to help the next generation of plumbing professionals enter the industry. Learn about the Hartford Loop, how CPVC pastic piping works in multifamily construction and training mistakes to avoid to become a more effective trainer. Find out who is this month's Truck of the Month, read the latest tool tips and discover the latest products in the plumbing 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

Truck of the month

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