When the Heating and A/C tech arrived to talk about our current furnace, he was saying all those parts that kept our furnace running efficiently.
He talked about the combustion chamber, a heat exchanger and a blower motor.
I knew what the blower motor was. That was the section of the system that pushed the heat into my HVAC ducts. I also knew what the air filtration compartment was because I often changed the air filters. The thermal coupling and manifold had me just as lost as when he said about the combustion chamber, however I could figure all of that out. The more he talked, the more boggled my mind was getting. It was like listening to a nurse tell you what they were going to do while in surgery, and you were already groggy from the IV drugs. I asked my fiance Bob if he would explain, since he was listening raptly. Bob told me to wait a couple hours, and he would explain after the Heating and A/C tech left! All of us ordered our furnace, and I sat through it all. After the Heating and A/C tech left, I asked Bob to explain what all the things were that he had been talking about. Bob explained about the combustion chamber, blower motor, and air filter, which I already knew about. I questioned Bob about the other stuff. Bob laughed and said he did not know, but the Heating and A/C corporation made it sound more important. I don’t remember having laughed so hard in quite some time. Bob finally shrugged and said if he were an Heating and A/C corporation, he could answer my question. Bob said he was as confused as I was.