I recently posed this question to The Wallies, they being contractors who post nearly every day on The Wall at HeatingHelp.com: If a new wholesaler moved into your town, what would they have to do to win your business?

I was listening to James Trane the other day. He was speaking from Chicago in 1902, telling me that his system of steam heating using small pots of mercury was the best way to go. Mercury. That got me thinking about how my classmates and I used to play with mercury while our science teacher smiled as he wandered the room, watching us poke the dangerous stuff with our adolescent fingers. Life in the 1950s sure was interesting.

In 1992, I self-published a thick book I called, "The Lost Art of Steam Heating." I did this because I could not get a publisher interested in something that few, if any, contractors had installed since the 1930s. I thought it would do well in New York City, where there are still plenty of steam-heated buildings, but to my delight, we sold tens of thousands of copies everywhere, and even in Hawaii. Go figure.

I read somewhere that the most prevalent machine in the world is the electric motor. I thought about that for a while and it made sense. Just look around. But then I began to wonder what the second-most prevalent machine in the world is. Turns out it’s the pump! And most pumps are connected to electric motors of one kind or another, so there you go. Throw a rock and you’ll hit a motor. Or a pump. They’re everywhere.  

Dr. Seuss wrote a beautiful book by that title. It’s probably been the main focus of most high-school valedictorian addresses ever since. But I don’t think Dr. Seuss ever spent much time in unusual mechanical rooms or famous buildings. 

I worked for a manufacturers’ rep when I was first learning about hydronics. A guy I worked with was 15 years older than me. He knew that I had absolutely no training as an engineer so he took a different tack with my education. He made me close my eyes and imagine myself as a marble rolling through the pipes.