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Home » Topics » The Glitch & The Fix

The Glitch & The Fix
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Hydronics Editor John Siegenthaler, P.E. challenges heating professionals to design radiant and hydronics systems for an efficiency-minded world.

ARTICLES

The Glitch and the Fix

Buried radiant PEX mistakes

April 2013 The Glitch & The Fix
April 30, 2013
By John Siegenthaler, P.E.
One Comment

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?


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The Glitch and the Fix

Overpowered

March 2013: The Glitch and the Fix
April 10, 2013
By John Siegenthaler, P.E.
No Comments
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.


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Iron meets microprocessor

February 28, 2013
No Comments
An old New England farm house has been heated with a two-pipe steam system serving plenty of sturdy cast-iron radiators. As part of an extensive renovation and insulation upgrade, the owner decides to upgrade the heat and convert the system to a high-efficiency, gas-fired condensing boiler.
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Photo op

January 30, 2013
By John Siegenthaler, P.E.
4 Comments
This installation greeted my friend Harvey Youker, who got the SOS (Save Our System) call from a frustrated homeowner.
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Hit or miss

December 20, 2012
By John Siegenthaler, P.E.
2 Comments
An installer assembles a small hydronic heating system for a well-insulated home.
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Save a circulator

November 26, 2012
By John Siegenthaler, P.E.
One Comment
 A hydronic system is to be designed to supply four panel radiators, each with its own thermostatic radiator valve, and an indirect water heater from a gas-fired sectional cast-iron boiler.
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Radiant + hydro-air zone

October 31, 2012
By John Siegenthaler, P.E.
3 Comments
An installer is asked to build a system to supply both radiant floor heating and a “hydro-air” zone. All heat will be supplied from a gas-fired cast-iron boiler.
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Once upon a time...

September 30, 2012
By John Siegenthaler, P.E.
No Comments
A schematic appeared in a manufacturer’s installation manual. It was their recommended way to install a two-zone system using zone valves.
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Out of touch

June 27, 2012
By John Siegenthaler, P.E.
No Comments
Eager to keep up with this new technology, an installer decides to install a hydraulic separator between a boiler and distribution system.
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Detour de tank

May 18, 2012
By John Siegenthaler, P.E.
3 Comments
The system shown was installed to provide domestic hot water to a high-end home with six bathrooms. The installer selected the largest 119-gallon indirect water heater available from his local supplier.
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William Dunkelberg, chief economist for the National Federation of Independent Business

2013 QSC Power Meeting XXXVIII

March 14-16, 2013, San Diego

Photos by Kelly Faloon/Plumbing & Mechanical

4/18/13 2:00 pm EDT

Smart Pumping -- The "New Normal" in Hydronics

This webinar will explain the benefits these circulators offer, and show you how to best apply them in residential and light commercial hydronic systems. It will cover both basic and unique applications for the Bell & Gossett VARIO and AUTO circulators. Why not make the “hydraulic efficiency” of your systems on par with their thermal efficiency. This webinar will show you how to do it.

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Hydronics Know How II CD

The Hydronics Know How II CD contains all the columns and articles John Siegenthaler has written for Plumbing & Mechanical and PM Engineer, from the very first in July 1996 through December 2008. That’s over 200 articles and columns covering everything from heat loss to hydraulic separation.

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