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John Siegenthaler, P.E.

John Siegenthaler, P.E., is a consulting engineer and principal of Appropriate Designs in Holland Patent, New York. In partnership with HeatSpring, he has developed several online courses that provide in-depth, design-level training in modern hydronics systems, air-to-water heat pumps and biomass boiler systems. Additional information and resources for hydronic system design are available on Siegenthaler’s website, www.hydronicpros.com.

Articles

ARTICLES

The Glitch & Fix: Underused Functionality

The Glitch & Fix: December 2017

John Siegenthaler, P.E.

December 30, 2017

Can you spot several details that will lead to problems? How would you design the system differently?

John Siegenthaler, P.E.

December 30, 2017

A knowledge of basic science reveals situations that seem too good to be true.

John Siegenthaler, P.E.

November 27, 2017

Stay above the dew point.

John Siegenthaler: Renewable Heating Design

Details for bypassing thermal storage

Backflow-prevention devices guard fire protection water entering potable supply.

John Siegenthaler, P.E.

October 24, 2017

Through and around.

The Glitch: Can you identify, describe, and propose a fix for several problems that are likely to develop with this system

Level-headed

John Siegenthaler, P.E.

October 24, 2017

An unpressurized outdoor wood-fired heater is installed to supply heat to fin-tube baseboard install in a two-story home.

John Siegenthaler, P.E.

October 24, 2017

It’s energy cost savings that really matter.

Level-headed

John Siegenthaler, P.E.

October 24, 2017

An unpressurized outdoor wood-fired heater is installed to supply heat to fin-tube baseboard install in a two-story home.

Flow rate, heat output and Delta-T

John Siegenthaler, P.E.

September 28, 2017

Some things don’t vary proportionally.

John Siegenthaler, P.E.

September 25, 2017

What is the purpose of a check valve?

Figure 1. The Glitch. Do you see any other details that should be changed

Details Matter

John Siegenthaler, P.E.

September 11, 2017

Assuming that the aquastat is operating correctly, and that essential details are all present and correctly installed, why is the system behaving this way?

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