My builder is telling me it will cost $4000 to upgrade to this type of furnace. Of course I called a few HVAC contractors and asked what the price difference was on a Plus 80 and a Plus90i furnace without installation (I assumed 80,000 BTU with 2000cfm). The average price difference was $1500!!! Way below the $4000 my builder is telling me.
Is my builder ripping me off or what? Keep in mind, I‚Äôve already paid for the Plus80 furnace AND the installation.....all I should be paying for is the cost difference between the two models, right???