I have a 78 year old converted coal gas forced hot air furnace that I am planning on replacing. I can't replace the blower/burner so the whole thing has to go. I got one price for a Trane xb90 125,000 BTU for a 3500s/f house that is 3 bricks thick with an insulated attic and all new windows... for $x. This includes removal of the old furnace and connecting to the old ductwork....a full installation. I got one other price of $x from someone who said I need twin units. I am near Gettysburg, PA. These prices seem high to me based on research I've done. Also, I've read good and bad things about Trane and about the XB90. I would like to pay extra for a good quality, long lasting furnace. Any suggestions on brands and models would be greatly appreciated as then I could go find an installer that carries that line. I'd love to get 78 years out of the new one!
Thank you very much,