Early plumbers adapted naturally to the allied craft of providing central heat to buildings using steam and hot water — known collectively as “hydronics.” Both plumbing and hydronic heating involved tapping a water source and conveying it through an intricate system of closed piping. Many early master plumbers found heating a natural business extension of their tradecraft.
With the rise of warm air heating and air-conditioning (HVAC) in the post World
War II era, many PHCC members expanded their expertise into this area as well. Although considerably different technologically, HVAC bears many similarities to plumbing from a business standpoint. In particular, they serve a common customer base.
With several intermediate name changes over the last 125 years, NAMP morphed into today’s PHCC. While the name has changed, the foundation of professionalism remains.
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Excerpted from:
The Plumbing-Heating-Cooling Contractors Association Celebrates 125 Years