I remembered that our dad had a boiler in his house.
The boiler was running all year round, even though every one of us used it to heat the house.
I thought all boilers were gas furnaces, plus all gas gas furnaces were boilers. There was never any difference between the more than one, as far as I knew. Both of us were putting oil in the tank to keep the boiler running in the summer, however without the boiler, there would be no boiling water. When I met our partner, I found out he was an Heating plus A/C contractor. I was telling him about our gas furnace one day, plus I said dad had been using the gas furnace for almost forty years. He told me a gas furnace had a life span of only about twenty years plus I just didn’t realize what was happening when he had another gas furnace installed. I told him I wasn’t stupid, plus I knew he had the gas furnace for over forty years, dad had been talking about having a new gas furnace installed about a year before I met him. He was considering getting a new style of gas furnace. My partner looked at me plus then he smiled. He asked if every one of us used the ‘gas furnace’ to heat our water. That’s when he laughed plus told me it’s a boiler; not a gas furnace. I didn’t know there was a difference, until he explained what it was. I felt a bit stupid, although he told me if I grew up with a boiler, I easily wouldn’t know the difference. A conversation that started out with us discussing a new Heating plus A/C system, plus me talking about our dad’s, ended up a lesson about Heating plus A/C systems.