Disclaimer: I didn't put this here because it is a special job. I just wanted to give Robo's heart a little stress test when he sees we put in a Goodman product!
The old GUN had a split heat exchanger faceplate, rusted shut burners and a very rusty cabinet due to condensate leaks. The supplier gave us some off a new one so we stayed with a Goodman. Seems like a nice unit. Was a bit of a pain since flue, intake, gas & drains all come out the left side. Hard to install the trap with the return there too. Otherwise, clean furnace, easy to install & service. Easy to flip the inducer around.