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
  • NEWS
    • Plumbing Group Pipeline
  • PRODUCTS
  • EXCLUSIVES
    • Truck of the Month
    • Plumber of the Month
    • Tool Tips
    • PM Profile
  • TOPICS
    • Bath & Kitchen
    • Business Management
    • Codes
    • Fire Protection
    • Green Plumbing
    • Mechanical Systems
    • Radiant & Hydronics
    • Solar Thermal/Geothermal
    • Technology
    • Water Quality
  • COLUMNS
    • John Siegenthaler
    • Dan Holohan
    • Dave Yates
    • Ray Wohlfarth
    • Julius Ballanco
    • Codes Corner
    • Water Wisdom
    • Al Levi
    • Kenny Chapman
    • Matt Michel
    • Marketing Magic
    • Nicole Krawcke
    • Guest Editorial
  • MEDIA
    • eBooks
    • eNewsletters
    • Interactive Spotlights
    • Photo Galleries
    • Podcasts
    • Polls
    • Webinars
    • White Papers
    • Videos
    • PM AHR Expo 2023 Videos
  • DIRECTORIES
  • RESOURCES
    • Subscribe to Plumbing Group eNewsletters
    • Industry Calendar
    • PM Bookstore
    • Green Plumbing & Heating
    • Market Research
    • Radiant Comfort Report
  • CLASSIFIEDS
    • Auctions
    • Business Opportunities
    • Business For Sale
    • Equipment For Sale
    • Positions Available
    • Products
    • Safety
    • Services
    • Software
    • Training
  • EMAGAZINE
    • eMagazine
    • Archive Issues
    • Contact
    • Advertise
    • Subscribe
    • Submit a Letter
Home » Topics » Columnists » Dan Holohan: Heating Help

Dan Holohan: Heating Help
Dan Holohan: Heating Help RSS Feed RSS

Understanding pump pressure that’s available vs. the required pressure

Not pumping so hot
Dan Holohan
Dan Holohan
June 25, 2013
No Comments

I was lucky to have had as one of my teachers the late, great Gil Carlson.  


Read More

Early radiant heating systems

From Roman hypocausts to Chinese kangs to Levittown to the invention of PEX.
Dan Holohan
Dan Holohan
May 29, 2013
One Comment

Each morning, when I sit at my desk, I give a moment’s thought to the broken copper pipe buried in the concrete slab just below my feet. 


Read More

Radiator Cover-Up

A simple way of killing convection and radiation.
Dan Holohan
Dan Holohan
April 19, 2013
One Comment
One of my yellowed heating textbooks has a wonderful drawing of a Victorian radiator that has what looks like a teapot cozy over it.
Read More

Thank Denis

A brief history of the steam pressure-relief valve.
Dan Holohan
Dan Holohan
March 15, 2013
No Comments
A brief history of the steam pressure-relief valve.
Read More

We Put the Fish in Efficiency

What exactly is higher efficiency higher than?
Dan Holohan
Dan Holohan
February 13, 2013
No Comments
My friend, Jenni, was visiting from Scotland and had never been to Central Park, so I took her there for a long walk, a ride on the carousel and some wine at the boathouse. We sat outside.
Read More

Hydronic heating has come a long way, but system innovation continues

Dan Holohan
Dan Holohan
January 15, 2013
No Comments
Twenty years ago this month, I wrote a column for this fine magazine titled, “Reaching for Higher Plateaus.”


Read More

Vertical heating

Dan Holohan
Dan Holohan
December 1, 2012
No Comments
Unraveling the mysteries of early 20th century high-rise steam-heating systems.
Read More

The house by Cedar Hill

Dan Holohan
Dan Holohan
November 1, 2012
No Comments
The early days of district steam heating systems in NYC.
Read More

Old boiler room stuff

Dan Holohan
Dan Holohan
October 1, 2012
No Comments
Use this list to troubleshoot old steam-heating systems.

Read More

Gianni

Dan Holohan
Dan Holohan
September 1, 2012
No Comments
Unskilled workers in your area? Train ‘em!
Read More
Previous 1 2 … 6 7 8 9 10 11 12 13 14 Next
Subscribe For Free!
  • eMagazine Subscription
  • eNewsletters
  • Online Registration
  • Manage My Preferences
  • Subscription Customer Service

More Videos

Popular Stories

leak detection

Plumbing contractors find success in selling leak detection products

Wasilla Alaska

New Alaskan police station locks up heating efficiency and safety with PEX hydronic systems

Carrier-logo.gif

Carrier acquires Viessmann

Poll

Have you had more homeowners buying heat pumps due to the IRA's 25C tax credit?

Have you had more homeowners buying heat pumps due to the IRA's 25C tax credit?
View Results Poll Archive

Products

Modern Hydronic Heating and Cooling For Residential and Light Commercial Buildings, 4th Edition

Modern Hydronic Heating and Cooling For Residential and Light Commercial Buildings, 4th Edition

See More Products
Letters to the Editor

Get our new eMagazine delivered to your inbox every month.

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

SUBSCRIBE TODAY!
  • Resources
    • Contact Us
    • Radiant & Hydronics
    • Industry Links
    • Reprints
    • List Rental
    • Market Research
    • Survey And Sample
    • Custom Content & Marketing Services
  • Want More
    • Connect
    • eNewsletters
    • Store
  • Plumbing Group
    • Plumbing & Mechanical
    • PM Engineer
    • Supply House Times
  • Advertise
    • Advertise
  • Privacy
    • PRIVACY POLICY
    • TERMS & CONDITIONS
    • DO NOT SELL MY PERSONAL INFORMATION
    • PRIVACY REQUEST
    • ACCESSIBILITY
    • UPDATE MY PREFERENCES

Copyright ©2023. All Rights Reserved BNP Media.

Design, CMS, Hosting & Web Development :: ePublishing