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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

Biomass heating systems can use both big and little tanks

How they can work together in a wood-fired heating system.

John Siegenthaler, P.E.

May 29, 2013

Interest in biomass heating systems continues to rise, especially in rural areas of the United States and Canada. Although plenty of devices are available that burn wood to heat water, the state-of-the-art device is a wood-gasification boiler.

Buried radiant PEX mistakes

April 2013 The Glitch & The Fix

John Siegenthaler, P.E.

April 30, 2013

A group of masons pour a 6-in.-thick concrete slab containing 5/8-in. PEX tubing at 12-in. spacing. A nearly complete layer of extruded polystyrene insulation is under the slab. But what are they doing wrong?

Solar Thermal Report- Spring 2013: If I Made the Tanks, Part 1

What would an ideal pressurized thermal storage tank for a solar combisystem look like?

John Siegenthaler, P.E.

April 26, 2013

Residential solar combisystems provide domestic water heating and some percentage of space heating. Although less known than domestic hot water-only systems, combisystems can be practical and efficient if properly sized and designed.

Smoke Gets in your Eyes

It’s time to do wood-fired heating right.

John Siegenthaler, P.E.

April 19, 2013

Every August, I make a short trip to a local event call the Woodsmen’s Field Days. This gathering is all about cutting down trees and then slicing them up into either firewood or lumber.

Overpowered

March 2013: The Glitch and the Fix

John Siegenthaler, P.E.

April 10, 2013

An installer decides to use a four-way motorized mixing valve to interface between a gas-fired, cast-iron boiler and a low-temperature radiant panel system.

Energy and Power

They're not the same thing

John Siegenthaler, P.E.

February 13, 2013

Most of you reading this column consider yourselves heating professionals.

John Siegenthaler, P.E.

January 30, 2013

This installation greeted my friend Harvey Youker, who got the SOS (Save Our System) call from a frustrated homeowner.

John Siegenthaler, P.E.

January 15, 2013

I recently read an Internet posting asserting that heat pumps, both air-source and geothermal, should not be considered renewable energy heat sources.

John Siegenthaler, P.E.

December 20, 2012

An installer assembles a small hydronic heating system for a well-insulated home.

John Siegenthaler, P.E.

December 1, 2012

A new piping concept and control wiring challenge.

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