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Home » Authors » Dan Holohan

Articles by Dan Holohan

steam boiler

Dan Holohan: Dry steam is the goal

Things to consider when replacing a steam boiler.
Dan Holohan
Dan Holohan
February 1, 2023

I love all the advances taking place in the world of hydronics, but I’m still seeing plenty of steam systems out there in our older cities, so knowing about dry steam will help you if you’re replacing a steam boiler. The dryer the steam is, the better you’re going to look to your customers.


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desk-typewriter-lamp

Dan Holohan: That seventies show

Learn from the mistakes of the past or we’ll be doomed to repeat them.
Dan Holohan
Dan Holohan
January 4, 2023

I began my career in the HVAC business in 1970 as a truck driver for an AC/refrigeration wholesaler. I stayed there just six weeks because my father — who worked for a manufacturers’ rep — told me there was an opening for a clerk at the rep. It paid $110 a week, which was $10 more than I was getting driving the truck. Plus, I’d get to work with him as my boss.


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City

Dan Holohan: The geography of auto-feeders on steam

Auto-feeders — yay or nay?
Dan Holohan
Dan Holohan
December 1, 2022

I have heating (plumbing, fire suppression, etc.) shops in New York and New Jersey. This is very much steam country, and we repair and replace steam boilers and systems all week long and have been for decades. All that is fine, but what I find incredibly odd is the polarized perception of the automatic water feeder.


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heating hot water

Dan Holohan: Why we use 180 degrees for hot-water systems

The history of The Carbon Club.
Dan Holohan
Dan Holohan
November 2, 2022

Most hydronic systems have the boiler running up to 180° F with water returning from the system at 160°. This rarely happens in real life, but it’s the traditional way we do things.


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piping

Dan Holohan: Pipe stories

The story behind nominal pipe sizes.
Dan Holohan
Dan Holohan
October 4, 2022

I called the plumber because there’s an immediacy to plumbing; and I’m old enough to know that it’s best for me not to touch pipes. To each his own trade.


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ophthalmologist

Dan Holohan: Diagnosing no heat over-the-phone

An expensive lesson.
Dan Holohan
Dan Holohan
September 1, 2022

My iPhone pinged a text: “Hi, Dan. How are you and Marianne, and the family? I’m sorry to bother you. I can’t get my steam heat to go on. I can’t get a plumber to come quickly. I guess they’re busy with the weather. Can I call you later to ask you something about the burner?”


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customer service

Dan Holohan: Making mistakes

It’s just what I do
Dan Holohan
Dan Holohan
August 1, 2022

Some years ago, a wholesaler hired me to do a seminar in a New England hotel for about 100 of his contractor customers. After the seminar, the owner of the company invited me and a bunch of his employees out for a nice dinner. There were about 15 of us.


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Why it’s so hard to find workers

Dan Holohan: Why it’s so hard to find workers

Contractors struggling to find able-bodied workers share experiences on HeatingHelp.com.
Dan Holohan
Dan Holohan
July 6, 2022

My shop teacher was a wiry man who loved hand tools. We spent a week making a buzzer base. He taught us how to saw, sand and varnish. He introduced me to a Brace & Bit hand drill and went on and on about how this was better than an electric drill. “Can you feel the wood? It’s alive!” he said, and I could.


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Tough job site conditions call for creative workarounds.

Dan Holohan: Tough job site conditions call for creative workarounds

What’s in the way?
Dan Holohan
Dan Holohan
June 1, 2022

In the city of Worcester, Massachusetts, which snuggles into the center of the state, you will find Mount Saint James, and upon that steep hill, you will find The College of the Holy Cross.


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Good help is hard to find

Dan Holohan: Good help is hard to find

Stay or go?
Dan Holohan
Dan Holohan
May 3, 2022

My neighbor, Tony, loves his house. We live in a low-crime neighborhood on Long Island but Tony is always on guard against miscreants. He has a Ring camera on every side of his house, mounted high so they’re protected from spray paint. Some of the cameras turn on klieg lights and alarms if I step outside at night to toss the trash in the can. 


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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
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