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The Wall
Dan Holohan

Dan Holohan

Joined on March 4, 2009

Last Post on August 20, 2014

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Recent Posts


@ August 1, 2002 9:28 AM in R&M is Expanding and Looking for Good People (Steamhead)

you could not deepen your knowledge of heating in a better way. What an opportunity!

If you're flying in for the Gathering in November

@ August 1, 2002 9:27 AM in Need a ride from Boston? - Dan H.

Jim Olsztynski has room in his rental car for a few other Wetheads. He's landing at Logan on Friday, November 22 at 5:21 PM. If you're arriving around the same time and want to hook up with Jim for a ride to Marlborough, let me know and I'll put you in touch with him. Also, George Zebrowski, my favorite magazine publisher, will also be with us. It gets better every day!

You can go back in time

@ July 31, 2002 12:59 PM in Things you may not know about the Search feature - Dan H.

with the Search feature. It works by keyword. Click on Search and then type something in the box. Pick a time within the past 90 days, or just leave the dash in the box and it will go for everything that relates to that key word. The search will show a list of posts. If one looks intersting to you, click on Show Thread, which you'll see at the top of each individual post. Show Thread opens the entire original thread. If you then add a post to that thread, the old thread, along with your new post will appear at the top of the Wall. A bunch of people have asked me about this so I thought some instructions would help. This new Wall's pretty neat, isn't it? Thanks for being a part of it, and for all that you do for us.


@ July 31, 2002 12:52 PM in Ball valve with Thermometer as handle

came from different locations for the photo. One was inside; one was out in the truck? Thinking like a mystery writer here. Or maybe Mario had one in his armpit while he was setting up the camera? Hmmm.

I think the supply house guys

@ July 31, 2002 12:48 PM in vaporstat vs pressuretrol

are confused. Vaporstats belong on heating systems that are designed to operate on less than 1 psi, which would include just about every house in America.


@ July 31, 2002 11:02 AM in Steam HELP

if you add another radiator it has to have its own steam trap. You can't split into two and then bring them both back to the single trap because steam will short-circuit from one to the other up the return. That creates severe water hammer. It can be done, but you really need to have a steam guy look it over first. Got any good trap reps in the area?

Big man

@ July 31, 2002 10:57 AM in did a good thing this week i think

Bigger heart. Well done, pal.

If the vacuum pump is staying

@ July 31, 2002 7:31 AM in old school, newboilers

and you're adding a boiler feed pump you'll have to discharge from the vacuum pump into the boiler feed tank. From there, you'll need two motorized valves, one to each of the two boilers. Each boiler will have a pump controller that will open the motorized valve on the feed tank. An end switch in the motorized vavle will then turn on the feed pump. The motorized valves will keep the vacuum pump from sucking water out of the feed tank on start up. The equalizer would go from the boiler header (through a water seal and check valve) back to the vacuum return line. Its job is to break any naturally induced vacuum in the radiators (which forms when the steam condenses) that may be deeper than the vacuum formed by the pump. It's rare for that to happen and the equalizer is really a "just in case" thing. I've got a better description in all of this in Hot Tech Topics. It's in an article called, "The 25 Steps in the Repair of a Vacuum Steam System." Hope that helps!

This one runs until Sunday

@ July 30, 2002 2:49 PM in New Give & Get - Dan H.

When cleaning out the wet returns on a steam system, how do keep from making a mess on the customer's floor? Please EMAIL me your comments. If you post it here I may miss it and then you won't get the list. Thanks.

They just

@ July 30, 2002 2:21 PM in Good stuff in Massachusetts - Dan H.

made a huge snail-mailing on this one so if you're interested you should get in while you can. It's a tremendous training value. Bring your people.

And a good time

@ July 30, 2002 9:14 AM in Management Approval! and 1974 Slab Update (PJO)

will be had by all!

Go to

@ July 30, 2002 9:02 AM in Good stuff in Massachusetts - Dan H. and click on Contractor Training for the Second Annual GasNetworks Heating Professionals Conference on September 19, 2002 : 8:30 a.m. - 5 p. m. at the Sheraton Colonial Resort and Golf Club in Wakefield, MA. This is a real good one.

one and the same

@ July 29, 2002 9:01 PM in GOOD job Peerless

That new I=B=R book is terrific. I asked them a couple of times if we could sell it here but they never followed up with me.

those books

@ July 29, 2002 5:46 PM in GOOD job Peerless

were done by Jim Goins, one of the best in the business.

Don't miss his column

@ July 29, 2002 1:41 PM in Pete Hamill - Dan H.

today in the Daily News. Cut and paste this link:

it's in

@ July 29, 2002 10:19 AM in Painting Radiators, Looking for Archived Info

Hot Tech Topics

A beautiful place

@ July 26, 2002 2:55 PM in New Paltz steam - Dan H.

Hard to believe we can't find a steam guy in the area, eh?

It's a bit far

@ July 26, 2002 7:09 AM in New Paltz steam - Dan H.

for the Dog to do from Long Island (although I know he'd shine with it). I'm surprised that we can't find a closer pro. Opportunity knocks.


@ July 26, 2002 6:54 AM in The Wall & Photos

you have to open the thread to see the photos. The software can't note them on the first page. Sorry.


@ July 25, 2002 11:42 PM in The Wall & Photos

Just scroll down. The thread are wide open.


@ July 25, 2002 2:22 PM in Concrete, the most consumed product hot rod

PLEASE don't stop rambling. Great story. Thanks.

I have a homeowner

@ July 25, 2002 10:19 AM in New Paltz steam - Dan H.

looking for help with a steam system in New Paltz, NY. Who's interested?