Although heating water falls under the H in HVAC, you are not likely to find water heaters there. By the way, if you’re looking for information on hot water heaters, I have the e-mail addresses of about 100 grizzled veterans who would love to bestow upon you the difference between hot water heaters and water heaters. Although nearly every dwelling in America has a water heater, they tend to be overlooked in our profession — from textbooks right to the technician who walks past the water heater to tune up the furnace.
By obtaining a good working knowledge of water heaters, you are preparing yourself to fulfill a customer need and at the same time create opportunities for your company.