When I first entered the trades in 1972, residential tank-style water heaters shipped with the aquastat set to approximately 140° F. Dishwashers had no need to incorporate a sanitizing cycle. Around 1977, water heater manufacturers were required to lower the aquastat temperature setting to approximately 120°, and now, dishwashers needed to incorporate a sanitizing cycle where rinse water in their reservoir was raised to 140° or higher.

When I first entered the trades, F. W. Behler installed lots of galvanized and copper spouting. I was not keen on working several stories above terra firma, which hampered my speed in getting-er-done. What to do to overcome my fear of heights? Go skydiving of course!

Thanks to folks like you, I’ve been able to delve into many forensic examinations of mechanical mayhem and then offer solutions based on solid engineering guidelines.

On Sept. 1, 1979, I struck out on my own to become an independent PHVAC mechanical contractor. 

In 1921, Chetwood Smith had this to say in the American Water Works Association Journal, “I have seen over 35 explosions from overheating water. 

In 2003, I had the opportunity to attend ISH in Frankfurt, Germany. 

Assembling prior columns, updating older information, along with some new content for the four eBooks has been an interesting review of my 48-years as a mechanical contractor. 

When our local water company started adding Watts No. 7 dual-check backflow preventers to all water services, we soon discovered water heaters were failing at a rapid pace, with gas fired models exhibiting telltale signs where the cold/hot water lines skewed off making them look like a bow-legged cowboy! 

Looking back to 1991 when we first started searching for home designs, there was a radiant heating revival underway in the USA. 

Waterborne diseases were, at one time, the largest health threat to human life.