Articles by John Siegenthaler, P.E.

Side-By-Side Vs. End-To-End

The choice of piping system can make a significant difference in operating cost.
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Ticked Off, Part 2

Reducing noise from heat transfer plates within radiant panels.
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Ticked Off, Part 1

Reducing noise from heat transfer plates within radiant panels.
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The concept for a simple, stable and efficient residential heat source.
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Mountaintop Experience

John Siegenthaler says, if there's ever been a time to get serious about slab insulation, it's now!
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Thermal Accumulators

Another European concept that will eventually show up in North America.
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Full Circle

Will low head loss boilers make a come back?
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Solar Appliances

Hardware consolidation will hasten adoption of active solar energy systems.
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From Dumb Curves To Smart Areas
John Siegenthaler, PE

Get ready for circulators with different personalities.
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John Siegenthaler

Trimming away extraneous design details and hardware for the most efficient hydronic heating systems.
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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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Where do you look for new employees?

Where do you look for new employees?
View Results Poll Archive

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.