search
cart
facebook instagram twitter linkedin youtube
  • Sign In
  • Create Account
  • Sign Out
  • My Account
  • NEWS
  • PRODUCTS
    • FEATURED PRODUCTS
  • CONTRACTORS
    • BATH & KITCHEN PRO
    • BUSINESS MANAGEMENT
    • HIGH EFFICIENCY HOMES
    • TECHNOLOGY
    • 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
      • Kristen R. Bayles: Editorial Opinion
      • Guest Editorial
    • SPONSOR INSIGHTS
  • MEDIA
    • EBOOKS
    • PODCASTS
    • VIDEOS
    • WEBINARS
  • RESOURCES
    • BIG BOOK DIRECTORY
    • REP LOCATOR
    • INDUSTRY CALENDAR
    • Letters to the Editor
    • PM BOOKSTORE
    • CE CENTER
    • MARKET RESEARCH
    • CLASSIFIEDS
  • EMAGAZINE
    • EMAGAZINE
    • ARCHIVE ISSUES
    • CONTACT
    • ADVERTISE
    • PME EMAGAZINE ARCHIVES
  • SIGN UP!
Home » Authors » Dan Holohan

Articles by Dan Holohan

Why is it a British thermal unit?

Dan Holohan
February 4, 2016

Ever wonder why it’s a British thermal unit and not a Polish thermal unit?


Read More

The origins of the British thermal unit

Why not a Ptu?
Dan Holohan
January 20, 2016

Ever wonder why it’s a British thermal unit and not a Polish thermal unit?


Read More

A new look at vacuum heating

Dan Holohan
December 21, 2015

Simple modifications make this system quiet and maintenance-free.


Read More

Fishing guides and heating techs

Dan Holohan
October 23, 2015

Human nature is a glorious thing, as is ego.


Read More

How PEX was invented

Dan Holohan
September 28, 2015

Chickens and the 1972 Olympics helped PEX tubing find its niche.


Read More

Thomas Engel, inventor of PEX

Dan Holohan
September 28, 2015

The invention of PEX and the permanent-magnet motor.


Read More

The evolution of the tee

Dan Holohan
August 20, 2015

The history and evolution of the tee.


Read More

Why steam boilers short-cycle

Dan Holohan
July 20, 2015

Where there is air, steam will not go.


Read More

New York City's first technical school

Dan Holohan
June 22, 2015

I’m honored to be part of New York City’s first technical school. 


Read More

A look at Danfoss' production cycle of burner nozzles

The intricacies of a nozzle should not be taken lightly
Dan Holohan
April 24, 2015
Andrew Kozdron has a title: production manager, heating solutions, division of Danfoss.


Read More
Previous 1 2 … 7 8 9 10 11 12 13 14 15 16 17 Next
Manage My Account
  • Newsletters
  • Online Registration
  • Subscription Customer Service
  • eMagazine
  • Manage My Preferences

More Videos

Sponsored Content

Sponsored Content is a special paid section where industry companies provide high quality, objective, non-commercial content around topics of interest to the Plumbing & Mechanical audience. All Sponsored Content is supplied by the advertising company and any opinions expressed in this article are those of the author and not necessarily reflect the views of Plumbing & Mechanical or its parent company, BNP Media. Interested in participating in our Sponsored Content section? Contact your local rep!

close
  • ClearLOC pipe fittings
    Sponsored byLegend

    How Plumbing Professionals Are Reducing Installation Time Through Smarter Connection Design

  • HyperPure® PE-RT tubing
    Sponsored byLegend

    Why Sustainable Innovation Will Shape the Future of Plastic Pipe

  • HyperPure® PE-RT tubing
    Sponsored byLegend

    More Than One Right Answer: Rethinking PE-RT in Modern Plumbing Systems

Popular Stories

PMCxE Next-Gen All-Stars 2026

2026 Next Gen All Stars: Top 40 Under 40 PHCP-PVF Professionals

A plumber working under a sink.

What Mechanical Square Footage Costs Plumbing Contractors on the Back End

The Glitch & The Fix

The Glitch & The Fix: Checking Details

eBook | 2026 Radiant & Hydronics All Stars

Poll

Getting your new hire jobsite-ready

How long does it typically take to get a new hire jobsite-ready?
View Results Poll Archive

Products

The Water Came To A Stop

The Water Came To A Stop

See More Products

Keep your content unclogged with our newsletters!

Stay in the know on the latest plumbing & piping industry trends.

JOIN TODAY!
  • RESOURCES
    • Advertise
    • Contact Us
    • Directories
    • Store
    • Want More
    • Supply House Times
  • SIGN UP TODAY
    • Create Account
    • eMagazine
    • Newsletter
    • Customer Service
    • Manage Preferences
  • SERVICES
    • Marketing Services
    • Reprints
    • Market Research
    • List Rental
    • Survey/Respondent Access
  • STAY CONNECTED
    • LinkedIn
    • Facebook
    • Instagram
    • YouTube
    • X (Twitter)
  • PRIVACY
    • PRIVACY POLICY
    • TERMS & CONDITIONS
    • DO NOT SELL MY PERSONAL INFORMATION
    • PRIVACY REQUEST
    • ACCESSIBILITY

Copyright ©2026. All Rights Reserved BNP Media, Inc. and BNP Media II, LLC.

Design, CMS, Hosting & Web Development :: ePublishing