Could someone enlighten me on a couple things. First we are looking to replace our condensing unit and air handler. Ours was installed in 83 so it has had a good life. After looking a some different units online just for price ideas I have noticed that all newer models these days come with the coil on the bottom and blower on top. Looking at a couple of my friends furnaces theirs are like mine, with the blower on the bottom, controls on top, and the coil in a fabricated plenum. Does any one know why the coils are on the bottom on newer units?
I'm trying to find a system that will allow me to put my return duct into the left side of the unit insted of coming up through the bottom of the air handler. I've notice in a couple install manuals that I downloaded that alot of handlers have the return air coming up through the bottom. Are these things that have just changed over the years?
Any help is always appreciated.