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Home » hydronic heating

Articles Tagged with ''hydronic heating''

Hydrant Fuel Pump Station
Renewable Heating Design | John Siegenthaler

An expensive lesson in hydronic fundamentals

What was, what is, and what could have been.
John Siegenthaler, P.E.
John Siegenthaler, P.E.
December 5, 2024

A review of a flawed hydronic heating system uncovers critical errors, such as improper circulator placement and restrictive mixing valves, leading to uneven warmth and corrosion issues. This underscores the need for proper design and installation in hydronic systems.


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Boiler plumbing for a large apartment building.
Heating Perceptions | Scott Secor

In hot water: A DHW logistical predicament

A local hotel’s domestic hot water system repairs calls for creative problem-solving.
Scott Secor
Scott Secor
December 5, 2024

A hotel’s aging hot water system faces upgrades as leaking tanks are set to be replaced with smaller units. While a full redesign is desired for efficiency, budget constraints may limit the project scope, causing temporary hot water disruptions.


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Laying blue pipes for floor heating at the construction site.
Hydronics Workshop | John Siegenthaler

Cutting-edge hydronics technology delivers superior efficiency and comfort

Chill chaser.
John Siegenthaler, P.E.
John Siegenthaler, P.E.
December 4, 2024

Hydronically-heated concrete floor slabs offer comfort but can be slow to warm up. A proposed solution uses a heat pump and variable-speed circulators to provide rapid heating through air handlers, ensuring quick warmth during cool days while maintaining energy efficiency.


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Vincinity.jpg

Vicinity Energy delivers eSteam, first carbon-free thermal energy solution in U.S.

November 22, 2024

Vicinity will import renewable electricity through its co-located substations to power the electric boiler, generating carbon-free eSteam.


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Jobsite oddities
Heating Perceptions | Scott Secor

Jobsite oddities

Strange tales from the field.
Scott Secor
Scott Secor
November 6, 2024

Last week, we did a simple oil to gas steam boiler replacement. The customer (Mike) has been a family friend of my parents for more than 60 years. Mike’s grandfather built the house back in the 1920s. The home is currently occupied by Mike’s daughter and her two teenage grandchildren.


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Heat Pump, vertical ground source, 3d illustration
Hydronics Workshop | John Siegenthaler

How to create your own flush cart for hydronic heating systems

Budget flushing
John Siegenthaler, P.E.
John Siegenthaler, P.E.
November 4, 2024

In 1986, I installed a 1.5-ton geothermal heat pump in my home using two 500-foot horizontal HDPE earth loops. After digging a trench, I connected the loops to the pump and opted for a 2 HP swimming pool pump to fill and flush the system, as a garden hose couldn't provide the needed flow rate.




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Caleffi AutoFill.jpg

Caleffi automatic filling valve with backflow preventer

October 28, 2024

Caleffi's new AutoFill has a fill rate of 5.5 GPM and maintains stable system pressure, ensuring consistent results without the need for constant monitoring.


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Industrial Boilers
The Boiler Room | Ray Wohlfarth

Avoiding problems on your next hydronic boiler project

Best practice tips when replacing a boiler system.
ray wohlfarth
Ray Wohlfarth
October 16, 2024

Always assume the old boiler was installed wrong. This principle has served me well in my career by finding problems before we own the system.


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Environmentally Friendly Heat Pump Technology in Front of a brick house.
Hydronics Workshop | John Siegenthaler

The convergence of hydronics

Modern hydronic technology binds new technologies and desired outcomes together and creates unprecedented market opportunities.
John Siegenthaler, P.E.
John Siegenthaler, P.E.
October 4, 2024

In 2024, the North American air-to-water heat pump market saw significant expansion, with nine new offerings introduced at the January AHR show by companies new to this category. By year's end, at least 18 companies either have or plan to offer these pumps in the U.S. Read the list of these companies as of mid-2024.



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Boiler Room with Pressure Tanks and associated Plumbing.
Hydronics Workshop | John Siegenthaler

Follow established piping layouts to prevent reverse thermosiphoning

Reversals revealed.
John Siegenthaler, P.E.
John Siegenthaler, P.E.
July 1, 2024

Flow direction is crucial in hydronic systems. Most designs have a fixed flow direction, but there are situations where reversals can occur. It's important to address these proactively to ensure smooth operations.


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    • WATER TREATMENT
    • 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
      • Guest Editorial
    • SPONSOR INSIGHTS
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  • EMAGAZINE
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    • PME EMAGAZINE ARCHIVES
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