Dan Holohan

A heated exchange

Dan Holohan

July 18, 2015

The boiler-feed pump, which we also had sold, was overflowing and the contractor had a telephone, so he used it.

How to heat old churches

In an attempt to prevent additional church-heating-related conundrums, I give you this.

Dan Holohan

June 29, 2015

A few issues ago I wrote about the chaos caused by installing motorized zone valves in older steam-heating systems found in places of worship.

What if we all sold like Amazon?

Dan Holohan

May 20, 2015

Amazon will be answering with drones.

Don't used motorized valves on steam systems

I know this because so many of these ridiculously misapplied valves wind up in houses of worship.

Dan Holohan

April 21, 2015

Do you know who invented the motorized zone valve used on older steam-heating systems?

Believing is seeing

People often create analogies by comparing something they don’t fully understand to something they do understand.

Dan Holohan

March 23, 2015

I’ve found most contractors to be very visual people. They see pictures in their minds rather than numbers.

Heating and cooling lessons at the grocery store

Dan Holohan

February 28, 2015

Mama, Marie and me.

This steamfitter knew what he was talking about

Dan Holohan

January 31, 2015

You may never have heard of Hugh J. Barron. He was an Irishman by birth and a steamfitter by trade.

Air needs a dance partner in order to move

Dan Holohan

January 15, 2015

An indirect solution.

Scottish device aims to reduce fuel bills

Hey, who doesn’t want to save fuel?

Dan Holohan

December 1, 2014

Hey, who doesn’t want to save fuel? And who doesn’t want to sell stuff that saves fuel?

How the low-water cutoff came to be

Mr. McDonnell had to wait for the invention of the oil burner.

Dan Holohan

December 1, 2014

A chat with Mr. M

Articles by Dan Holohan

A heated exchange

How to heat old churches

What if we all sold like Amazon?

Don't used motorized valves on steam systems

Believing is seeing

Heating and cooling lessons at the grocery store

This steamfitter knew what he was talking about

Air needs a dance partner in order to move

Scottish device aims to reduce fuel bills

How the low-water cutoff came to be

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