This website requires certain cookies to work and uses other cookies to help you have the best experience. By visiting this website, certain cookies have already been set, which you may delete and block. By closing this message or continuing to use our site, you agree to the use of cookies. Visit our updated privacy and cookie policy to learn more.
This Website Uses Cookies
By closing this message or continuing to use our site, you agree to our cookie policy. Learn More
This website requires certain cookies to work and uses other cookies to help you have the best experience. By visiting this website, certain cookies have already been set, which you may delete and block. By closing this message or continuing to use our site, you agree to the use of cookies. Visit our updated privacy and cookie policy to learn more.
Plumbing and Mechanical (pmmag) logo
search
cart
facebook twitter linkedin youtube
  • Sign In
  • Create Account
  • Sign Out
  • My Account
Plumbing and Mechanical (pmmag) logo
  • Home
  • Magazine
    • Current Issue
    • Digital Edition
    • Truck of the Month
    • Plumber of the Month
    • Tool Tips
    • PM Profile
    • PM eNewsletters
  • Market Sectors
    • Bath & Kitchen
    • Business Management
    • Codes
    • Fire Protection
    • Green Plumbing
    • Mechanical Systems
    • Radiant/Hydronics
    • Solar Thermal/Geothermal
    • Technology
    • Water Quality
  • News
  • Products
  • Columnists
    • John Siegenthaler
    • Dan Holohan
    • Dave Yates
    • Ray Wohlfarth
    • Julius Ballanco
    • Codes Corner
    • Al Levi
    • Kenny Chapman
    • Matt Michel
    • Marketing Magic
    • Coach’s Playbook
    • Nicole Krawcke
  • Radiant & Hydronics
  • Multimedia
    • Videos
    • PM AHR Expo 2020 Videos
    • Podcasts
    • Photo Galleries
    • Webinars
    • eBooks
  • Resources
    • Radiant Comfort Report
    • Green Plumbing & Heating
    • White Papers
    • Industry Calendar
    • PM Bookstore
    • PVF Outlook
    • PB Outlook
    • Classified Ads
    • Sponsor Insights
    • Subscribe to Plumbing Group eNewsletters
    • Market Research
  • Directories
    • RCR Buyers Guide
    • B.I.G. Book
    • Rep Locator
  • Contact
    • Contact Us
    • Advertise
    • Submit a Letter
Home » Authors » Dan Holohan
Dan Holohan

Dan Holohan

Technical writer and industry expert Dan Holohan and his wife Marianne founded HeatingHelp.com in 1997. It has since blossomed into a vibrant online community and trusted resource for heating information. Their daughter, Erin Holohan Haskell, bought the company from them in 2016. You can reach Dan Holohan at dan@heatinghelp.com. He loves hearing from you!

Articles

ARTICLES

Dan Holohan

Dan Holohan: How vacuum can cause steam problems

Don’t learn the hard way.
Holohan
Dan Holohan
December 23, 2020
No Comments

Back in the old days when most folks burned coal, vacuum was just about everyone’s friend. 


Read More
Dan Holohan

Dan Holohan: How to size a condensate pump

Some advice: Always try to see the system.
Holohan
Dan Holohan
November 27, 2020
No Comments

Most manufacturers rate their condensate pumps in square feet EDR. 


Read More
Dan Holohan

Dan Holohan: What I learned about steam traps

Lessons learned in the field.
Holohan
Dan Holohan
October 22, 2020
One Comment

Most of this, I had to learn the hard way. Perhaps you’ve done the same, but in case you haven’t, please allow me to save you some heartache. 


Read More
Dan Holohan

Dan Holohan: Pumps or circulators?

Never stop asking questions.
Holohan
Dan Holohan
September 23, 2020
No Comments

I started out in the business working for a manufacturers’ rep on the Isle of Long. 


Read More
Dan Holohan

Dan Holohan: Sell what they ask for

It’s not about you. It’s about them.
Holohan
Dan Holohan
August 25, 2020
No Comments

Each year, on the day after Thanksgiving, we celebrate Black Friday. 


Read More
Dan Holohan

Dan Holohan: Get out and learn

Keep an open mind and think.
Holohan
Dan Holohan
July 22, 2020
No Comments

I went to ISH in Frankfurt, Germany with three friends in 1995. 


Read More
Dan Holohan

Dan Holohan: Live seminars gone awry

What could go wrong? Plenty.
Holohan
Dan Holohan
June 23, 2020
No Comments

We learned from the pandemic that education is available in many more places than just at live seminars. 


Read More
Dan Holohan

Dan Holohan: Radiant close to home

Finding leaks in radiantly heated houses.
Holohan
Dan Holohan
May 21, 2020
One Comment

I have a photograph taken in Levittown, New York, sometime in the late 1940s. 


Read More
Dan Holohan

Dan Holohan: How to set a pressuretrol

You won’t find this in the instructions.
Holohan
Dan Holohan
May 13, 2020
No Comments

If you have a steam boiler you’re also going to have a pressuretrol.


Read More
Holohan

Dan Holohan: The good doctor’s radiator

It’s a regular heating museum.
Holohan
Dan Holohan
April 6, 2020
One Comment

On Oct. 3, 1854, an industrious young man from New Haven, Connecticut, filed U.S. Patent No. 11,747. Stephen J. Gold called his patent “Improvement in Warming Houses by Steam.” 


Read More
View All Articles by Dan Holohan
Subscribe For Free!
  • Digital Edition Subscription
  • eNewsletters
  • Online Registration
  • Subscription Customer Service

More Videos

Popular Stories

Siggy

John Siegenthaler: Chump change

The Glitch

The Glitch & The Fix: Busy backup

Dan Holohan

Dan Holohan: How vacuum can cause steam problems

PHVAC Experts

PHVAC experts look ahead in 2021

Dave Yates

Dave Yates: Vented or vent-free gas logs and heaters

Letters to the Editor

Events

December 30, 2030

Webinar Sponsorship Information

For webinar sponsorship information, visit www.bnpevents.com/webinars or email webinars@bnpmedia.com.

View All Submit An Event

Products

History of Plumbing (ebook)

History of Plumbing (ebook)

See More Products

PM_Top20Products360

Plumbing and Mechanical

PM January 2021 Cover

2021 January

The January 2021 issue of Plumbing & Mechanical features the 2021 Plumbing Industry Forecast. This issue also looks at how specialty contractors can drive collaboration and project quality, and much more!
View More Create Account
  • Resources
    • Reprints
    • List Rental
    • Contact Us
    • AEC Store
    • Blogs
    • Radiant & Hydronics
    • Industry Links
    • Market Research
    • Custom Content & Marketing Services
  • Want More
    • Connect
    • Survey And Sample
  • Plumbing Group
    • PM Engineer
    • Supply House Times
  • Advertise
    • Advertise
    • Plan for 2020!
  • Privacy
    • PRIVACY POLICY
    • TERMS & CONDITIONS
    • DO NOT SELL MY PERSONAL INFORMATION
    • PRIVACY REQUEST
    • ACCESSIBILITY

Copyright ©2021. All Rights Reserved BNP Media.

Design, CMS, Hosting & Web Development :: ePublishing