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Home » incorrect design

Articles Tagged with ''incorrect design''

The Glitch & The Fix, May 2016 -- Glitch drawing

Supplying two loads for multiple boiler system

The Glitch & The Fix, May 2016
John Siegenthaler, P.E.
John Siegenthaler, P.E.
May 16, 2016

An installer has piped a multiple boiler system to supply two loads.


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The Glitch and The Fix, April 2016 -- Glitch drawing

Wood-gasification boiler with existing piping

John Siegenthaler, P.E.
John Siegenthaler, P.E.
April 11, 2016

An installer plans to replace an outdoor wood-fired furnace with a new cordwood-gasification boiler with a rated output of 150,000 Btu/hr. The outdoor furnace is located about 100 ft. from the indoor mechanical room where the 1-in. PEX insulated underground piping joins the thermal storage tank. The installer plans to use the existing underground piping.


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March 2016 The Glitch and The Fix -- Glitch drawing

Modified primary/secondary hydronic piping system

March 2016 The Glitch and The Fix
John Siegenthaler, P.E.
John Siegenthaler, P.E.
March 18, 2016

An installer wants to achieve hydraulic separation between three zone circulators. He also wants to have the same supply water temperature to each zone, so he pipes up what he calls a “modified primary/secondary system.”


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February 2016 The Glitch & The Fix -- Glitch drawing

Hydraulic separator piping to indirect water heater, boilers

The Glitch & The Fix, February 2016
John Siegenthaler, P.E.
John Siegenthaler, P.E.
February 11, 2016

A designer needs to connect an indirect water heater to a multiple boiler system. He selects a hydraulic separator and connects the piping of the indirect water heater on the same side as the boilers.


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The Glitch and The Fix, January 2016 -- Glitch drawing

Retrofit with biomass boiler

The Glitch and The Fix, January 2016
John Siegenthaler, P.E.
John Siegenthaler, P.E.
January 12, 2016

A heating professional is asked to retrofit a biomass boiler to an existing distribution system consisting of older cast-iron radiators, iron piping and an oil-fired boiler.


Read More
The Glitch and The Fix, December 2015 -- Glitch drawing

A primary concern in a multiboiler system

December 2015, The Glitch and The Fix
John Siegenthaler, P.E.
John Siegenthaler, P.E.
December 7, 2015

A multiple boiler system using sectional cast-iron boilers has been configured to supply two loads.


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November 2015 The Glitch & The Fix: Glitch drawing

Radiant floor heat with hydraulic separator needs circulators

The Glitch & The Fix, November 2015
John Siegenthaler, P.E.
John Siegenthaler, P.E.
November 10, 2015

An installer is asked to provide a relatively simple single-zone, slab-type floor heating system supplied by a geothermal water-to-water heat pump. He’s heard that a hydraulic separator is a good component in such systems.


Read More
October 2015 The Glitch & The Fix -- Glitch drawing

Dubious solar hot water drainback

The Glitch & The Fix, October 2015
John Siegenthaler, P.E.
John Siegenthaler, P.E.
October 14, 2015

An installer uses an unpressurized thermal storage tank for drainback protection of a solar thermal system, and carefully slopes all the collectors and collector array piping for 1/4 in. per ft. drop.


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April 2015 Glitch drawing

Radiant floor panels supplied by pellet-fired boiler

April 2015 The Glitch and The Fix
John Siegenthaler, P.E.
John Siegenthaler, P.E.
April 13, 2015

An installer is asked to use a pellet-fired boiler to supply heat to two zones of low-temperature radiant floor panels. The system includes a three-way motorized mixing valve to reduce the supply water temperature to the distribution circuits.


Read More
March 2015 Glitch drawing

First attempt at wall-mounted modulating-condensing boiler

The Glitch and The Fix, March 2015
John Siegenthaler, P.E.
John Siegenthaler, P.E.
March 12, 2015

A heating contractor who’s trying out his first wall-mounted mod/con boiler installs it as shown above. When buying the boiler, the contractor was told to use a pair of closely spaced tees to separate the boiler and distribution system.


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    • PMC COLUMNS
      • Dave Yates: Contractor’s Corner
      • John Siegenthaler: Hydronics Workshop
      • Kenny Chapman: The Blue Collar Coach
      • Matt Michel: Service Plumbing Pros
      • Scott Secor: Heating Perceptions
  • ENGINEERS
    • CONTINUING EDUCATION
    • DECARBONIZATION | ELECTRIFICATION
    • FIRE PROTECTION
    • GEOTHERMAL | SOLAR THERMAL
    • PIPING | PLUMBING | PVF
    • PME COLUMNS
      • Christoph Lohr: Strategic Plumbing Insights
      • David Dexter: Plumbing Talking Points
      • James Dipping: Engineer Viewpoints
      • John Seigenthaler: Renewable Heating Design
      • Lowell Manalo: Plumbing Essentials
      • Misty Guard: Guard on Compliance
  • RADIANT & HYDRONICS
    • RADIANT COMFORT REPORT
    • THE GLITCH & THE FIX
  • INSIGHTS
    • CODES
    • GREEN PLUMBING & MECHANICAL
    • PROJECT PROFILES
    • COLUMNS
      • Codes Corner
      • Natalie Forster: Editorial Opinion
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