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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: April 2018

John Siegenthaler, P.E.

April 30, 2018

Knock on wood. Can you identify at least five errors with this configuration?

John Siegenthaler, P.E.

April 26, 2018

A simplified design for cordwood gasification boiler systems.

The Glitch & Fix: March 2018

John Siegenthaler, P.E.

March 30, 2018

Tee’d Off

John Siegenthaler: How to wire fresh air dampers

The 2018 version of NFPA 54 prescribes methods for providing this air into confined spaces using one or two openings to outside space.

John Siegenthaler, P.E.

March 27, 2018

A simple circuit to coordinate fresh air dampers.

The Glitch & Fix: February 2018

John Siegenthaler, P.E.

February 26, 2018

One Chance to Get It Right

John Siegenthaler, P.E.

February 26, 2018

Designers need more information on “nubbed” foam insulation panels.

John Siegenthaler, P.E.

January 30, 2018

Anyone who has worked on the technical side of the hydronics industry has used terminology such as: pressure, differential pressure, head and head loss. These terms all have legitimate and specific meanings.

The Glitch & Fix: January 2018

John Siegenthaler, P.E.

January 30, 2018

John Pughe is a long-time colleague of mine and a true hydronics professional. He recently sent me an “as installed” and “as corrected” schematic for a hydronic heating system with twin 200,000 Btu/hr mod/con boilers, and 15 zones, each powered by its own circulator.