I have another thread about a contractor coming out, doing a pretty comprehensive full system check. He was extremely knowledgeable and very informative. Not wanting to look like a complete idiot, I didn't ask some questions I should have.
He did fully answer my questions, so the blame is on me.
Anyway, he calculated that I needed to replace my 3 ton outside unit with a 2 ton. He also said I should replace my 75,000 BTU gas furnace with a 60,000 BTU gas furnace.
Can someone (in simple terms) explain why going with smaller units is best? To us laymen, bigger is always better, but I know that really isn't the case, just don't understand the real reasoning.