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Home » Authors » Dan Holohan
Dan Holohan

Dan Holohan

Dan Holohan and his wife, Marianne, founded www.heatinghelp.com in 1997. You can reach Dan Holohan at dan@heatinghelp.com. He loves hearing from you!

Articles

ARTICLES

01 PM 1223 Dan Holohan Column Marianne and Dan Holohan Cape May
Heating Help | Dan Holohan

Longtime Plumbing Group columnist says goodbye

Dan Holohan
Dan Holohan
December 1, 2023

Hello, old friend. I’m writing today to say thanks, and to say farewell. This will be my last column.


Read More
01 PM 1123 CLMN Dan Holohan feature image
Heating Help | Dan Holohan

An important skill for teaching tradespeople

How to explain things
Dan Holohan
Dan Holohan
November 3, 2023

Kids have a way of dragging us old folks back in time. My grandson, Brendan put me back on the road, 40 years ago, when I was spending most of my time teaching tradespeople about the joys of steam and hot-water heating.


Read More
01 PM 1023 CLMN Dan Holohan
Heating Help | Dan Holohan

Women can work in mechanical rooms

Subdural’s triumph
Dan Holohan
Dan Holohan
October 2, 2023

Another photo appeared and this one had a woman in it. She was holding a long wrench and the business end was attached to one of the risers to the boiler’s drop-header.


Read More
01 PM 0823 CLMN Dan Holohan
Heating Help | Dan Holohan

Lessons learned cataloging old pumps in the Catskills

My dirty dance
Dan Holohan
Dan Holohan
September 1, 2023

I spotted a story in the newspaper last year that made me smile with a memory that was bittersweet. 


Read More
01 PM 0823 CLMN Dan Holohan feature
Heating Help | Dan Holohan

The Wallies hash out advice for younger generations

Advice for newbies?
Dan Holohan
Dan Holohan
August 2, 2023

Not long ago, Ray asked the Wallies who post daily on The Wall at HeatingHelp.com what advice they would give someone just starting out in this business. Here’s some of what they had to say. There’s a lot of street-smart experience here.


Read More
PM 0723 Dan Holohan Column feature image

Dan Holohan: Do you prefer educated customers?

Contractors weigh in on customer education preferences.
Dan Holohan
Dan Holohan
July 5, 2023

Over the years, I've had many homeowners read my books and then write to tell me they knew more about their system than the contractors that came to their houses. This was particularly true when it came to steam heating.


Read More
Blue Boiler

Dan Holohan: The importance of training and educating yourself on the equipment you work on

Magical thinking
Dan Holohan
Dan Holohan
June 2, 2023

It was one of those days at HeatingHelp.com when the old guys had the floor. One of the regulars, a retired (and understandably crotchety) fella from Canada had this to say:


Read More
1974 living room

Dan Holohan: Electrification may become more mainstream, but not overnight

Times change
Dan Holohan
Dan Holohan
May 2, 2023

Morris had me on the phone. It was 1974 and he was calling from Brooklyn, New York. I had a waxed handlebar mustache that year, and my workmates at the manufacturers’ rep were calling me Rollie Fingers because he was pitching for the Oakland Athletics in the World Series.


Read More
thermostat

Dan Holohan: Do you miss the T87

Though many have moved on to smart thermostats, several T87s are still in use today.
Dan Holohan
Dan Holohan
April 3, 2023

In 1885, when you could still buy a milk cow for $29.70, Albert Butz, a Swiss immigrant living in St. Paul, Minnesota, invented what he called the damper-flapper. He patented it the following year. The flapper opened a damper that allowed outside air to enter a coal-fired home furnace. This increased the oxygen in the furnace and made the fire burn hotter. When the temperature rose to a desired point, the damper closed.


Read More
U.S. Capitol

Dan Holohan: Why Congress has no windows

The history behind the U.S. Capitol building.
Dan Holohan
Dan Holohan
March 2, 2023

People who knew Capt. Montgomery C. Meigs said he was occasionally pompous, but when the job was done to his satisfaction, he said, “This was the most difficult piece of engineering and construction that I have yet to undertake.”


Read More
View All Articles by Dan Holohan
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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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