John Siegenthaler: Hydronics Workshop

John Siegenthaler gives a technical view of hydronic and radiant heating systems.

ARTICLES

Alternate methods to pipe a buffer tank

Short operating cycles continue to be one of the chronic complaints with modern hydronic heat sources.
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A unique air-to-water heat pump system from a business entrepreneur

Air-to-water heat pumps extract low-temperature heat from outdoor air and deliver it to a stream of water.
The big guy doesn’t always win.


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Hydronic cooling for smaller buildings

Not just for skyscrapers.

Hydronic cooling also works in smaller buildings.


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Modern approaches to wood-fired hydronic heating

Don’t overlook the trees.

Just as the solar thermal industry had its ups and downs over the last four decades, the American public’s interest in wood-based heating has fluctuated with the price of conventional fuel.


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Radiant ceilings are a great option in many systems

Over your head.

Radiant floor heating is by far the biggest part of the radiant panel market.


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Our industry needs more focus on distribution systems

It’s not all about the boiler.

As an industry, we have to move beyond judging the quality of a hydronic system based solely on the heat source.


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How flow rate affects heat output

When “thinking mathematically,” most people think in proportions.

German water.


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Hydronic radiant ceiling cooling for smaller buildings.

Removing limitations on radiant heating systems.

Well-designed and properly installed hydronic radiant heating systems have earned a deserved reputation for superior comfort. Even so, many people hesitate on using these systems because they can’t just push a button on their thermostat to change the system from heating to cooling.


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Expansion tank pressurization

Improper air-side pressurization 'wastes' some of the internal volume.

All closed-loop hydronic systems require an air space to absorb the increased volume of water as it warms during system operation. In most hydronic systems, this task is handled by an expansion tank. In most modern hydronic systems, it’s handled by a diaphragm-type expansion tank.


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Talking to my computer

My first experience teaching an online course.

Last fall, I taught my first online course dealing with designing hydronic heating systems. The course was titled “Mastering Hydronic System Design.” It was a collaborative effort between HeatSpring Learning Institute, BNP Media’s CE Campus and myself.


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2014 September

In this issue you’ll find The NY Red Bulls soccer team’s radiant system and incoming PHCC President Kevin Tindall.

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NAECA 2015 Water Heater Regulations

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