Dan Holohan

Dan Holohan

Dan Holohan can be reached at Dan Holohan Associates Inc., 63 North Oakdale Ave., Bethpage, NY 11714. Dan operates the HeatingHelp.com website. Post technical challenges on The Wall and get input from the best in the business.


Examples of cheating your client when servicing their hydronic systems

Eight examples of cheating your client.
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What Internet-enabled thermostats can do

What more can your device do? These products are shaking things up.
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Help owners understand fuel savings via lower heat complaints, not payback

“How much will it cost up front?”
Invisible tenants.

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Where are our apprenticeships?

The path to a career is through hands-on education.

Perhaps they’d rather be texting, tweeting and posting to Facebook rather than building stuff.

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Top 10 facts about the Hartford Loop

Ten facts about its history and how it works

Learn about how the Hartford Loop works.

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Get real — get hydronic heat

Reality shows.

An old, cast-iron pipe, with the slightest amount of water in it for two winters can crack laterally and for quite a few feet.

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How heating systems began

I was having a conversation the other day with Mr. Ara Marcus Daniels.

We were talking about early heating systems, Ara and I. I had questions and he had answers. When you want to know stuff about how things began, it pays to ask someone who has been dead for a while. Guys like that were there at the start and saw most of it for themselves.

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High pressure goes to low pressure. Always.


I stopped at the gas station the other day because one of my car’s tires looked a bit low. They charge us for air here on the Isle of Long. When I was a young man, it was free.

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Kids and mechanical malfunctions

Could they be the cause of your mechanical malfunctions?

Our daughter Kelly and her husband, Craig, wanted to give our grandchildren names that would never appear on a souvenir rack in a touristy store, so they named our grandson Sullivan “Sully” Daniel and our granddaughter Dempsey Jane.

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Knowledge is the greatest gift you can give

When I’m 64.

I turn 64 this month and if I knew I was going to live this long I would have taken better care of myself. Will you still need me; will you still feed me, when I’m 64? Hope so.

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2014 Truck of the Month

PM has featured so many great plumbing service trucks! See plenty of them here in our Truck Of The Month Archives page. Are you proud of your truck? Go to our Truck of the Month page to find out how your service truck could be chosen!

1/27/15 2:00 pm EST

Grow Your Business and Improve Operations with New Payment Technology

Attend this free webinar to learn how new developments in payment technology can help you close more jobs, increase upselling opportunities and improve operations.

Plumbing and Mechanical


2015 January

The January issue of PM features cover story: 2015 Plumbing Contractor of the Year: Jim Steinle and Atomic Plumbing.

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Where do you look for new employees?

Where do you look for new employees?
View Results Poll Archive

The Plumbing and Mechanical Store

2015 National Plumbing & HVAC Estimator

Every plumbing and HVAC estimator can use the cost estimates in this practical manual!

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Truck of the Month

Truck of the month

Are you proud of how your service truck looks? Do the graphics give people whiplash as they drive by? Have your calls increased because people remember your truck — and your company name? If so, we’d like to see it, too! Click here to find out how your service truck could be chosen as PM's Truck of the Month.