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
    • 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

The magic of the simple air vent

Dan Holohan: The magic of the simple air vent

You never know what knowledge you’ll discover by reading old literature.
Dan Holohan
April 1, 2022
Frozen steam coils
HEATING HELP

Dan Holohan: Frozen steam coils

Think like steam.
Dan Holohan
March 2, 2022

Frozen steam coils always seem to happen at the worst of times, don’t they? You’re busy because it’s cold enough to freeze coils. The place with the frozen coil contains people who are doing things that are so important they can’t possibly be without that particular coil. Not even for a minute. They’re on the phone, and they’re not being reasonable.


Read More
Easy to blame the boiler
HEATING HELP

Dan Holohan: So easy to blame the boiler

Troubleshooting unique cases.
Dan Holohan
February 1, 2022

A homeowner posted a question on The Wall at HeatingHelp.com about a drumroll sound that was coming from his brand-new steam boiler. What could it be? He included a video so all could hear, and sure enough, it sounded like a snare drum.


Read More
Radiator covers
Heating Help

Dan Holohan: The case for radiator covers

Common sense isn’t always that common.
Dan Holohan
January 3, 2022

In March 2010, a nine-month-old boy rolled off his sister’s bed in Jersey City, New Jersey, and got stuck between the bed and a cast-iron, steam radiator that was as hot as it’s supposed to be. The radiator delivered third-degree burns to the infant and left him with permanent scars.


Read More
Marbles and ghosts

Dan Holohan: Marbles and ghosts

Visual thinking is key to understanding hydronic systems.
Dan Holohan
December 8, 2021

I worked for a manufacturers’ rep when I was first learning about hydronics. A guy I worked with was 15 years older than me. He knew that I had absolutely no training as an engineer so he took a different tack with my education.


Read More
Big or small, contractors do it all
Heating Help

Dan Holohan: Does size matter?

Big or small, contractors do it all.
Dan Holohan
December 2, 2021

A young guy who was about the size of Bruno Mars came to my seminar once, and we were chatting during a break. I asked him how long he had been in the business. It’s good to see young people getting involved.


Read More
Everyone works on steam
HEATING HELP

Dan Holohan: Who gets to work on steam?

Always read the instructions.
Dan Holohan
November 1, 2021

How’s that for a title? I’ll give you the answer right up front: Everyone!  And the best part is you don’t have to know what you’re doing; you just have to show up.


Read More
Creepy crawl spaces

Dan Holohan: Creepy crawl spaces

Snakes and spiders and dead rats, oh my!
Dan Holohan
September 30, 2021

October, being the month for ghosts and goblins, seems like the perfect time to reminisce about those tight spots few want to visit, but many must.


Read More
Contractor Thinking About Heating System
Heating Help

Dan Holohan: What's inside?

Approach troubleshooting by thinking like the system you’re working on.
Dan Holohan
September 2, 2021
This one goes back a bunch of years. The contractor was a good steam man, but he had run out of ideas with this job. It was a typical, five-story, New York City tenement building. Its one-pipe steam system had served generations of tenants for more than 100 years.
Read More
Dan Holohan

Dan Holohan: My favorite radiator stories

The things we are taught when young stay with us for a long time — even if they are not always the right things.
Dan Holohan
August 2, 2021
So, I’m visiting a wholesaler in an old town on Long Island where my Uncle Tony worked when he was still on this side of the lawn. You would have liked him.
Read More
Previous 1 2 3 4 5 6 7 8 9 … 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
  • 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

An aerial view of the Obama Presidential Center.

Plumbing Contractor Cites $3.9M in Losses Tied to Obama Presidential Center Project

Large Residential Water Heating Boiler Maintenance Performed by Professional HVAC Technician

Is the Industry Ready for Heat Pump Water Heaters?

hydronics systems

Improving Hydronic Efficiency

Download the FREE 2025 Water Conservation, Quality & Safety eBook

Events

August 4, 2026

Is Contractor Training a Cost Center or Your Most Overlooked Growth Engine?

In this webinar, you’ll learn how to reframe training as a measurable revenue driver by connecting contractor performance improvements to real business outcomes—like increased equipment sales, stronger margins, and greater share-of-wallet.

August 25, 2026

Every Minute Matters: A Plumber’s Guide to Growth Without Adding

Join this webinar for practical strategies to grow revenue, improve profitability, and create more capacity using the resources you already have.

View All Submit An Event

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
eBook | 2025 Radiant & Hydronics All Stars

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