A Trane gas-powered furnace can cost anywhere from $2,250 to $12,000, while a Trane oil-powered furnace can run from $2,750 to $9,000, as of 2015. This cost includes installation of the furnace.
One top-rated option is the Trane XC95M, which is equipped with ComfortLink II Communication technology that allows for easy setting of the furnace from a remote location via a smartphone. Prices on this unit start at $3,900.
A popular oil-powered option is the Trane XV80, which starts out at around $2,800 and features a variable-speed motor for assurance of even distribution. It also comes with a lifetime warranty on its heat exchanger and a 10-year warranty on parts.