Articles by John Siegenthaler, P.E.

Whatever's On The Truck …
John Siegenthaler, PE

It’s not the professional way to select a circulator.
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Conversion Experience
John Siegenthaler, PE

Dealing with performance numbers expressed in different units.
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Where Do The Constants Come From?
John Siegenthaler, PE

It’s important to understand the formulas you work with.
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Hydronics Is For Pros
John Siegenthaler, PE

Do-it-yourself hydronic installations are not good for our industry.
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Btu Metering
John Siegenthaler, PE

A concept that leverages the advantages of hydronics.
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Ten Trends In North American Hydronics
John Siegenthaler, PE

Watch for these technologies to become more commonplace in the next few years.
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A Bit Too Pushy

Sometimes one less circulator makes sense.
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I, Not I At ISH

North America may be the only place where certain installation practices are used.
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The Incredible Shrinking Circulator
John Siegenthaler, P.E.

The lower limits are smaller than you think.
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Terminology Tune-Up
John Siegenthaler, PE

Some industry terms send the wrong message about what a hydronic system does.
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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!

1/27/15 2:00 pm EST

Grow Your Business and Improve Operations with New Payment Technology

Attend this free webinar to learn how new developments in payment technology can help you close more jobs, increase upselling opportunities and improve operations.

Plumbing and Mechanical


2015 January

The January issue of PM features cover story: 2015 Plumbing Contractor of the Year: Jim Steinle and Atomic Plumbing.

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The Plumbing and Mechanical Store

2015 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

Are you proud of how your service truck looks? Do the graphics give people whiplash as they drive by? Have your calls increased because people remember your truck — and your company name? If so, we’d like to see it, too! Click here to find out how your service truck could be chosen as PM's Truck of the Month.