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.

Gillis has more than 20 years of engineering and application experience.

Before I retired in 2016, I’d get a lot of calls from lawyers who wanted to hire me to be an expert witness at a trial. They were almost always representing a building owner. I always said “no thank you,” because I like to keep stress out of my life.

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